I could've asked this before I voted, but does "nothing" mean "I don't need a mousepad (because the computer has a built-in mouse)" or does it mean "I don't use a mousepad and therefore my mouse is on a tabletop"?
Woo. Crazy literalist here.
I might be skewing the results, but I chose "other" and my mousepad is the desktop. I have a mousepad somewhere but don't use it.