I think "mouse odometer" apps, which track how far your cursor has traveled plus other useless but somehow fascinating data, have been around about as long as the mouse itself. OdoPlus such an app for Windows. In addition to tracking your cursor's travel in pixels and meters and counting how many times you click with each mouse button, OdoPlus generates a cool graphical click distribution map that shows what regions of the screen you click on most. You know, just in case you need one.

[Via Joey Day]