3M Precise Mousing Surface. Mine is currently TAPED to my desktop, at a rather jaunty angle. Thing doesn't grip for ****. The only reason I haven't dug out my old cloth-topped mousepad is that it really does do a good job helping keep my el cheapo optical mouse from zooming up to the top right corner of the screen for no good reason.
The ones with the built-in wrist rest do stay put, though, probably because it's actually heavier. My brother has one of those.
well go on the slap me and then marvel at my beer & mice combination!
How's that work?