The plugin that we created in this chapter invokes the save method whenever the data is modified. In the next chapter, you will learn how to periodically save data. If you wish to save data when the server is shut down, simply call the save method from the onDisable method of the plugin's main class. You can use your programming skills to expand this plugin. You can add permission nodes, which is done by simply adding them to plugin.yml. You can also add a config.yml file to modify messages or perhaps the amount of time that needs to be set for the upcoming warp delay. If you wish to incorporate a listener, you can listen for a PlayerRespawnEvent. Then, you can set a player's respawn location to their home. There are countless more ways to customize this plugin to your liking. Many teleportation plugins use a warp delay to prevent players from teleporting away from a fight. In the next chapter, we will expand this project by adding a warp delay using the Bukkit scheduler.