Want to replicate Apple's OS X Spaces and Expose in Windows XP? Well, Microsoft has a free tool released as part of their "Power Tools" that lets you have up to four separate workspaces/desktops and installs buttons in your toolbar to control them. It works as promised and will allow you to switch between all four workspaces with ease.
Here is what it adds to your toolbar for control:
Similar functionality as Spaces and Expose, without all the style!
Download along with several other cool utilities for XP, here: