From the developer: "Bin Extender is an extension of the Recycle Bin in Windows. Too often we forget that the Recycle Bin stores all of our deleted files, taking up valuable hard drive space. Bin Extender alerts you when your Recycle Bin is getting 'very full' by displaying an icon in the System tray, as well as a special 'Very Full' Recycle Bin icon on your desktop.

"Bin Extender is highly configurable, allowing you to change the 'Very Full' setting, as well as choose from three sets of icons. Bin Extender also provides a System Tray shortcut to emptying the Recycle Bin as well as viewing its contents."