Having multiple desktops is something I first learned to love while I was using Ubuntu. Then when I switched to OS X I became addicted to it (there’s no better way of keeping Unity, a script editor, GIMP and Blender all open at the same time IMO). Now that I’m transitioning to Windows 7 I’ve been finding the lack of having virtual desktops extremely unproductive. That is until I discovered Dexpot. Give it a look, it’s easy to install, works and it’s free. 
Very useful indeed. Thanks for sharing