diff --git a/pom.xml b/pom.xml
index b4d6f30..648d37a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
     <modelVersion>4.0.0</modelVersion>
 
     <groupId>net.knarcraft</groupId>
-    <artifactId>permissionsigns</artifactId>
+    <artifactId>PermissionSigns</artifactId>
     <version>1.0-SNAPSHOT</version>
     <packaging>jar</packaging>
 
diff --git a/src/main/java/net/knarcraft/permissionsigns/PermissionSigns.java b/src/main/java/net/knarcraft/permissionsigns/PermissionSigns.java
index b9e616c..a8d33f4 100644
--- a/src/main/java/net/knarcraft/permissionsigns/PermissionSigns.java
+++ b/src/main/java/net/knarcraft/permissionsigns/PermissionSigns.java
@@ -5,8 +5,10 @@ import net.knarcraft.permissionsigns.command.PermissionSignsTabCompleter;
 import net.knarcraft.permissionsigns.container.PermissionSign;
 import net.knarcraft.permissionsigns.container.SignCreationRequest;
 import net.knarcraft.permissionsigns.formatting.Translator;
+import net.knarcraft.permissionsigns.listener.SignListener;
 import net.knarcraft.permissionsigns.manager.EconomyManager;
 import net.knarcraft.permissionsigns.manager.PermissionManager;
+import net.knarcraft.permissionsigns.manager.SignManager;
 import net.knarcraft.permissionsigns.thread.SignCreationRequestTimeoutThread;
 import net.milkbowl.vault.economy.Economy;
 import net.milkbowl.vault.permission.Permission;
@@ -19,6 +21,7 @@ import org.bukkit.plugin.ServicesManager;
 import org.bukkit.plugin.java.JavaPlugin;
 import org.bukkit.scheduler.BukkitScheduler;
 
+import java.io.IOException;
 import java.util.List;
 import java.util.PriorityQueue;
 import java.util.Queue;
@@ -94,7 +97,9 @@ public final class PermissionSigns extends JavaPlugin {
         Stream<SignCreationRequest> matchingRequests = signCreationRequests.stream().filter(
                 (item) -> item.getPlayer().getUniqueId().equals(uuid));
         List<SignCreationRequest> requestList = matchingRequests.toList();
-        signCreationRequests.remove(requestList.get(0));
+        if (requestList.size() > 0) {
+            signCreationRequests.remove(requestList.get(0));
+        }
     }
 
     @Override
@@ -153,11 +158,13 @@ public final class PermissionSigns extends JavaPlugin {
         } else {
             throw new IllegalStateException("[PermissionSigns] Error: Vault could not be loaded");
         }
+        getServer().getPluginManager().registerEvents(new SignListener(), this);
 
         Translator.loadLanguages("en");
         registerCommands();
         BukkitScheduler scheduler = Bukkit.getScheduler();
         scheduler.runTaskTimer(this, new SignCreationRequestTimeoutThread(signCreationRequests), 0L, 100L);
+        SignManager.loadSigns();
     }
 
     /**
@@ -173,7 +180,11 @@ public final class PermissionSigns extends JavaPlugin {
 
     @Override
     public void onDisable() {
-        // Plugin shutdown logic
+        try {
+            SignManager.saveSigns();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
     }
 
 }
diff --git a/src/main/java/net/knarcraft/permissionsigns/command/CreateCommand.java b/src/main/java/net/knarcraft/permissionsigns/command/CreateCommand.java
index 3e63bd2..0adb9b2 100644
--- a/src/main/java/net/knarcraft/permissionsigns/command/CreateCommand.java
+++ b/src/main/java/net/knarcraft/permissionsigns/command/CreateCommand.java
@@ -21,6 +21,7 @@ public class CreateCommand implements CommandExecutor {
     public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, @NotNull String[] args) {
         // /ps create <name> <permission,permission> <cost> <duration> to create a new permission-sign
         //Name and permission(s) required, but duration and cost optional
+        String usage = "/ps create <name> <permission,permission> [cost] [duration] - Used for creating a new permission sign";
         if (!(sender instanceof Player)) {
             sender.sendMessage(StringFormatter.getTranslatedErrorMessage(TranslatableMessage.COMMAND_PLAYER_ONLY));
             return false;
@@ -31,12 +32,14 @@ public class CreateCommand implements CommandExecutor {
         }
         if (args.length < 2) {
             sender.sendMessage(StringFormatter.getTranslatedErrorMessage(TranslatableMessage.MISSING_CREATION_INFO));
-            return false;
+            sender.sendMessage(usage);
+            return true;
         }
 
         PermissionSign newSign = parseSign(sender, args);
         if (newSign == null) {
-            return false;
+            sender.sendMessage(usage);
+            return true;
         }
         PermissionSigns.addSignCreationRequest((Player) sender, newSign);
 
@@ -54,19 +57,23 @@ public class CreateCommand implements CommandExecutor {
     private PermissionSign parseSign(@NotNull CommandSender sender, @NotNull String[] args) {
         String name = args[0];
         String[] permissions = args[1].split(",");
-        double cost;
-        int duration;
-        try {
-            cost = Double.parseDouble(args[2]);
-        } catch (NumberFormatException exception) {
-            sender.sendMessage(StringFormatter.getTranslatedErrorMessage(TranslatableMessage.COST_INVALID_NUMBER));
-            return null;
+        double cost = 0;
+        int duration = 0;
+        if (args.length > 2) {
+            try {
+                cost = Double.parseDouble(args[2]);
+            } catch (NumberFormatException exception) {
+                sender.sendMessage(StringFormatter.getTranslatedErrorMessage(TranslatableMessage.COST_INVALID_NUMBER));
+                return null;
+            }
         }
-        try {
-            duration = Integer.parseInt(args[3]);
-        } catch (NumberFormatException exception) {
-            sender.sendMessage(StringFormatter.getTranslatedErrorMessage(TranslatableMessage.DURATION_INVALID_NUMBER));
-            return null;
+        if (args.length > 3) {
+            try {
+                duration = Integer.parseInt(args[3]);
+            } catch (NumberFormatException exception) {
+                sender.sendMessage(StringFormatter.getTranslatedErrorMessage(TranslatableMessage.DURATION_INVALID_NUMBER));
+                return null;
+            }
         }
 
         return new PermissionSign(name, List.of(permissions), duration, cost);
diff --git a/src/main/java/net/knarcraft/permissionsigns/command/CreateTabCompleter.java b/src/main/java/net/knarcraft/permissionsigns/command/CreateTabCompleter.java
index e8c8081..e2e13ee 100644
--- a/src/main/java/net/knarcraft/permissionsigns/command/CreateTabCompleter.java
+++ b/src/main/java/net/knarcraft/permissionsigns/command/CreateTabCompleter.java
@@ -1,20 +1,159 @@
 package net.knarcraft.permissionsigns.command;
 
+import org.bukkit.Bukkit;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandSender;
 import org.bukkit.command.TabCompleter;
+import org.bukkit.permissions.Permission;
+import org.bukkit.plugin.Plugin;
 import org.jetbrains.annotations.NotNull;
 
+import java.util.ArrayList;
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 
 /**
  * The tab completer for the create command
  */
 public class CreateTabCompleter implements TabCompleter {
 
+    private static List<String> plugins;
+    private static Map<String, List<String>> permissions;
+    private static List<String> numbers;
+    private static List<String> empty;
+    private static List<String> name;
+
     @Override
-    public List<String> onTabComplete(@NotNull CommandSender sender, @NotNull Command command, @NotNull String alias, @NotNull String[] args) {
-        return null;
+    public List<String> onTabComplete(@NotNull CommandSender sender, @NotNull Command command, @NotNull String alias,
+                                      @NotNull String[] args) {
+        //First, display all plugins, filtering on written text
+        //Second, if a dot has been input, go to the correct branch,
+        //Might want to save the plugin list, but generate permission lists on the fly as needed
+        if (plugins == null) {
+            loadAvailablePermissions();
+            numbers = new ArrayList<>();
+            numbers.add(String.valueOf(0));
+            empty = new ArrayList<>();
+            name = new ArrayList<>();
+            name.add("<name>");
+        }
+
+        if (args.length > 4) {
+            return empty;
+        } else if (args.length > 2) {
+            return numbers;
+        } else if (args.length > 1) {
+            return tabCompletePermission(args[1]);
+        } else {
+            return name;
+        }
+    }
+
+    /**
+     * Gets the tab complete value for the permission typed
+     *
+     * @param typedNode <p>The full permission node typed by the player</p>
+     * @return <p>All known valid auto-complete options</p>
+     */
+    private List<String> tabCompletePermission(String typedNode) {
+        StringBuilder permissionListString = new StringBuilder();
+        if (typedNode.contains(",")) {
+            String[] permissionList = typedNode.split(",");
+            for (int i = 0; i < permissionList.length - 1; i++) {
+                permissionListString.append(permissionList[i]);
+                permissionListString.append(",");
+            }
+            typedNode = permissionList[permissionList.length - 1];
+        }
+        String permissionPrefix = permissionListString.toString();
+        List<String> output;
+        if (typedNode.contains(".")) {
+            List<String> matchingPermissions = permissions.get(typedNode.substring(0, typedNode.lastIndexOf(".")));
+            if (matchingPermissions == null) {
+                if (permissionPrefix.isEmpty()) {
+                    output = new ArrayList<>();
+                } else {
+                    List<String> onlyPrefix = new ArrayList<>();
+                    onlyPrefix.add(permissionPrefix);
+                    output = onlyPrefix;
+                }
+            } else {
+                //Filter by the typed text
+                output = filterMatching(matchingPermissions, typedNode);
+            }
+        } else {
+            output = plugins;
+        }
+
+        //Add previous permissions in the comma-separated lists as a prefix
+        if (permissionPrefix.isEmpty()) {
+            return output;
+        } else {
+            List<String> prefixed = new ArrayList<>(output.size());
+            for (String matchingCompletion : output) {
+                prefixed.add(permissionPrefix + matchingCompletion);
+            }
+            return prefixed;
+        }
+    }
+
+    /**
+     * Find completable strings which match the text typed by the command's sender
+     *
+     * @param values    <p>The values to filter</p>
+     * @param typedText <p>The text the player has started typing</p>
+     * @return <p>The given string values which start with the player's typed text</p>
+     */
+    private List<String> filterMatching(List<String> values, String typedText) {
+        List<String> configValues = new ArrayList<>();
+        for (String value : values) {
+            if (value.toLowerCase().startsWith(typedText.toLowerCase())) {
+                configValues.add(value);
+            }
+        }
+        return configValues;
+    }
+
+    /**
+     * Loads all permissions available from bukkit plugins
+     */
+    private static void loadAvailablePermissions() {
+        plugins = new ArrayList<>();
+        permissions = new HashMap<>();
+        for (Plugin plugin : Bukkit.getPluginManager().getPlugins()) {
+            for (Permission permission : plugin.getDescription().getPermissions()) {
+                loadPermission(permission);
+            }
+        }
+    }
+
+    /**
+     * Loads a given permission into the proper lists and maps
+     *
+     * @param permission <p>The permission to load</p>
+     */
+    private static void loadPermission(Permission permission) {
+        String permissionName = permission.getName();
+        String[] permissionParts = permissionName.split("\\.");
+        for (int i = 0; i < permissionParts.length; i++) {
+            if (i == 0) {
+                plugins.add(permissionParts[0]);
+            } else {
+                StringBuilder pathBuilder = new StringBuilder();
+                for (int j = 0; j < i; j++) {
+                    pathBuilder.append(".");
+                    pathBuilder.append(permissionParts[j]);
+                }
+                String path = pathBuilder.substring(1);
+                List<String> permissionList = permissions.get(path);
+                if (permissionList == null) {
+                    permissionList = new ArrayList<>();
+                    permissions.put(pathBuilder.substring(1), permissionList);
+                }
+                permissionList.add(permissionName);
+            }
+        }
     }
 
 }
diff --git a/src/main/java/net/knarcraft/permissionsigns/container/PermissionSign.java b/src/main/java/net/knarcraft/permissionsigns/container/PermissionSign.java
index d16943f..d123654 100644
--- a/src/main/java/net/knarcraft/permissionsigns/container/PermissionSign.java
+++ b/src/main/java/net/knarcraft/permissionsigns/container/PermissionSign.java
@@ -165,7 +165,7 @@ public class PermissionSign {
             return Translator.getTranslatedMessage(TranslatableMessage.SIGN_COST_FREE);
         } else {
             String currency = EconomyManager.getCurrency(cost != 1);
-            return String.format("%f%s", cost, currency);
+            return String.format("%.2f%s", cost, currency);
         }
     }
 
diff --git a/src/main/java/net/knarcraft/permissionsigns/formatting/StringFormatter.java b/src/main/java/net/knarcraft/permissionsigns/formatting/StringFormatter.java
index 734b632..0a426ae 100644
--- a/src/main/java/net/knarcraft/permissionsigns/formatting/StringFormatter.java
+++ b/src/main/java/net/knarcraft/permissionsigns/formatting/StringFormatter.java
@@ -13,10 +13,10 @@ public class StringFormatter {
      * @param input       <p>The input string to replace in</p>
      * @param placeholder <p>The placeholder to replace</p>
      * @param replacement <p>The replacement value</p>
-     * @return <p>The input string with all placeholder instances replaced</p>
+     * @return <p>The input string with the placeholder replaced</p>
      */
     public static String replacePlaceholder(String input, String placeholder, String replacement) {
-        return input.replaceAll(placeholder, replacement);
+        return input.replace(placeholder, replacement);
     }
 
     /**
@@ -25,7 +25,7 @@ public class StringFormatter {
      * @param input        <p>The input string to replace in</p>
      * @param placeholders <p>The placeholders to replace</p>
      * @param replacements <p>The replacement values</p>
-     * @return <p>The input string with all placeholder instances replaced</p>
+     * @return <p>The input string with placeholders replaced</p>
      */
     public static String replacePlaceholders(String input, String[] placeholders, String[] replacements) {
         for (int i = 0; i < Math.min(placeholders.length, replacements.length); i++) {
@@ -61,7 +61,7 @@ public class StringFormatter {
      * @return <p>The formatted message</p>
      */
     public static String formatInfoMessage(String message) {
-        return ChatColor.DARK_RED + formatMessage(message);
+        return ChatColor.DARK_GREEN + formatMessage(message);
     }
 
     /**
@@ -71,7 +71,7 @@ public class StringFormatter {
      * @return <p>The formatted message</p>
      */
     public static String formatErrorMessage(String message) {
-        return ChatColor.DARK_GREEN + formatMessage(message);
+        return ChatColor.DARK_RED + formatMessage(message);
     }
 
     /**
@@ -82,7 +82,8 @@ public class StringFormatter {
      */
     private static String formatMessage(String message) {
         return ChatColor.translateAlternateColorCodes('&',
-                Translator.getTranslatedMessage(TranslatableMessage.PREFIX)) + ChatColor.RESET + message;
+                Translator.getTranslatedMessage(TranslatableMessage.PREFIX)) + " " + ChatColor.RESET +
+                ChatColor.translateAlternateColorCodes('&', message);
     }
 
 }
diff --git a/src/main/java/net/knarcraft/permissionsigns/listener/SignListener.java b/src/main/java/net/knarcraft/permissionsigns/listener/SignListener.java
index 8efe385..86d0f57 100644
--- a/src/main/java/net/knarcraft/permissionsigns/listener/SignListener.java
+++ b/src/main/java/net/knarcraft/permissionsigns/listener/SignListener.java
@@ -135,7 +135,11 @@ public class SignListener implements Listener {
             if (!player.hasPermission(permissionNode)) {
                 permissionsBuilder.append(permissionNode);
                 permissionsBuilder.append(", ");
-                PermissionManager.addPermission(player, permissionNode, permissionSign.getDuration() == 0);
+                if (permissionSign.getDuration() == 0) {
+                    PermissionManager.addPermission(player, permissionNode);
+                } else {
+                    PermissionManager.addTemporaryPermission(player, permissionNode, permissionSign.getDuration());
+                }
             }
         }
 
@@ -144,7 +148,7 @@ public class SignListener implements Listener {
         grantedPermissions = grantedPermissions.substring(0, grantedPermissions.length() - 2);
         String timeUnit = Translator.getTranslatedMessage(TranslatableMessage.SIGN_TIME_UNIT);
         player.sendMessage(StringFormatter.replacePlaceholders(successMessage, new String[]{"{permissions}", "{time}"},
-                new String[]{grantedPermissions, permissionSign.getDuration() + timeUnit}));
+                new String[]{grantedPermissions, permissionSign.getDuration() + " " + timeUnit}));
     }
 
     /**
diff --git a/src/main/java/net/knarcraft/permissionsigns/manager/PermissionManager.java b/src/main/java/net/knarcraft/permissionsigns/manager/PermissionManager.java
index 7c1be1d..3158a85 100644
--- a/src/main/java/net/knarcraft/permissionsigns/manager/PermissionManager.java
+++ b/src/main/java/net/knarcraft/permissionsigns/manager/PermissionManager.java
@@ -24,28 +24,13 @@ public class PermissionManager {
         PermissionManager.permission = permission;
     }
 
-    /**
-     * Grants a permission to the given player
-     *
-     * @param player         <p>The player to grant the permission to</p>
-     * @param permissionNode <p>The permission node to grant the player</p>
-     * @param permanent      <p>Whether to permanently grant the permission node</p>
-     */
-    public static void addPermission(Player player, String permissionNode, boolean permanent) {
-        if (permanent) {
-            addPermission(player, permissionNode);
-        } else {
-            addTemporaryPermission(player, permissionNode);
-        }
-    }
-
     /**
      * Grants a permanent permission to a player
      *
      * @param player         <p>The player to grant the permission to</p>
      * @param permissionNode <p>The permission node to grant to the player</p>
      */
-    private static void addPermission(Player player, String permissionNode) {
+    public static void addPermission(Player player, String permissionNode) {
         permission.playerAdd(player, permissionNode);
     }
 
@@ -54,9 +39,11 @@ public class PermissionManager {
      *
      * @param player         <p>The player to give the permission to</p>
      * @param permissionNode <p>The temporary permission to grant</p>
+     * @param duration       <p>The duration for which the player should keep the given permission</p>
      */
-    private static void addTemporaryPermission(OfflinePlayer player, String permissionNode) {
+    public static void addTemporaryPermission(OfflinePlayer player, String permissionNode, int duration) {
         permission.playerAddTransient(player, permissionNode);
+        temporaryPermissions.add(new TemporaryPermission(player, permissionNode, duration));
         //TODO: Create and store a temporary permission
         // Check all stored temporary permissions on startup:
         //  * Remove expired temporary permissions
diff --git a/src/main/java/net/knarcraft/permissionsigns/manager/SignManager.java b/src/main/java/net/knarcraft/permissionsigns/manager/SignManager.java
index 7d21a4c..89356b9 100644
--- a/src/main/java/net/knarcraft/permissionsigns/manager/SignManager.java
+++ b/src/main/java/net/knarcraft/permissionsigns/manager/SignManager.java
@@ -15,6 +15,7 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Objects;
+import java.util.UUID;
 import java.util.logging.Level;
 
 /**
@@ -81,10 +82,10 @@ public class SignManager {
      */
     public static void loadSigns() {
         YamlConfiguration configuration = YamlConfiguration.loadConfiguration(signsFile);
-
         ConfigurationSection signSection = configuration.getConfigurationSection("signs");
         managedSigns = new HashMap<>();
         if (signSection == null) {
+            PermissionSigns.getInstance().getLogger().log(Level.WARNING, "Signs section not found in signs.yml");
             return;
         }
         for (String key : signSection.getKeys(false)) {
@@ -95,6 +96,7 @@ public class SignManager {
                         e.getMessage());
             }
         }
+        PermissionSigns.getInstance().getLogger().log(Level.INFO, "Permission signs finished loading");
         //TODO: Might want to re-draw signs here in case any signs have changed
     }
 
@@ -120,8 +122,9 @@ public class SignManager {
         String[] locationParts = key.split(",");
         Location signLocation;
         try {
-            signLocation = new Location(Bukkit.getWorld(locationParts[0]), Double.parseDouble(locationParts[1]),
-                    Double.parseDouble(locationParts[2]), Double.parseDouble(locationParts[3]));
+            signLocation = new Location(Bukkit.getWorld(UUID.fromString(locationParts[0])),
+                    Double.parseDouble(locationParts[1]), Double.parseDouble(locationParts[2]),
+                    Double.parseDouble(locationParts[3]));
         } catch (NumberFormatException exception) {
             throw new InvalidConfigurationException("Invalid sign coordinates");
         }
diff --git a/src/main/resources/plugin.yml b/src/main/resources/plugin.yml
index 90c0f18..4c5ac1a 100644
--- a/src/main/resources/plugin.yml
+++ b/src/main/resources/plugin.yml
@@ -1,6 +1,6 @@
 name: PermissionSigns
-version: '${project.version}'
-main: net.knarcraft.permissionsigns.Permissionsigns
+version: 1.0
+main: net.knarcraft.permissionsigns.PermissionSigns
 api-version: 1.18
 prefix: PermissionSigns
 depend: [ Vault ]