Simple Page Ordering is a free WordPress plugin which lets you order your pages (and other hierarchical post types) with simple drag and drop right in the post list.
Simply drag and drop the page into your desired position! It’s that simple. No new admin menus pages, no dedicated clunky user interfaces.
To facilitate the menu order management on sites with many pages, the plug-in also adds a new drop down filter allowing you to customize the paging (pages per page) on the page admin screen. Your last choice will even be saved whenever you return (on a user to user basis and post type by post type basis)!