Virtual Desktop

"Yod'm 3D provides four virtual desktops for your PC, all of them contained in a spinning 3D cube.

Virtual desktops are great for cutting down on window clutter and improving PC productivity.
Yod'm keeps it simple, giving you four virtual desktops on a rotating "cube." Just press Ctrl-Shift and the left or right arrow key to cycle between them. (You can assign different activation-key combinations, which is good: I need Ctrl-Shift for Word.) You can also hold down the activation keys and drag your mouse left or right, which provides a better rotating-cube-in-space effect. If you want to jump directly to an open application in any desktop, you can click the Yod'm icon in the System Tray and select the app."

(via http://lifehacker.com/software/virtual-desktops/download-of-the-day-yodm-3d-windows-255448.php)

I use this myself, and its really cool.

Download a previous version here

(http://yodm-3d.uptodown.com/en/)

or here

(http://keznews.com/2705_Yodm_3D_-_3D_Desktop_for_Windows_XP_and_Vista)

because it was bought, developed, and re-released with a pricetag..its now called 'deskspace'
(http://www.otakusoftware.com/deskspace/index.html"