Wicked Folders: Manage WordPress Pages In Folders
You are going to have an easier time managing your content when your site has only a few pages. As it grows, you may end up with large number of pages and post types to deal with. You can always put them inside folders thanks to plugins such as Wicked Folders.
This script doesn’t change your permalinks, so you can organize your pages and custom post types with peace of mind. Wicked Folders has a drag & drop interface, so you can drag items into folders and move folders easily. Users have the option to move pages into folders in bulk and assign them to multiple folders.
Webmasters are provided with a tree view of their folders .An unlimited number of folders and nested folders are supported. This is a free script.