I saw a thread like this on another message board and I thought it'd be cool if some of you guys shared those little proggys that make using windows quicker, easier, and an overall more enjoyable experience.

Here two by me:
1) Stroke it. Mouse geustures for the whole system. It lets me fly through windows without using my keyboard. http://www.tcbmi.com/strokeit/

2)X-setup. Tweakxp on steroids. http://www.xteq.com/products/xset/index.html

leave out stardock products, because we mostly know about them.