OdoPlus is a freeware mouse odometer with a twist: besides tracking the distance your mouse cursor has travelled, it also generates a Click distribution map, indicating which areas of the screen have been clicked the most. Here's mine (from the last 4 hours): Note the bright spot in the upper right from closing a whole bunch of windows. Also, you can sort of tell I have my taskbar docked to the left side of the screen. [via Pricelessware] Update: here's what my map looks like after 3 weeks of use: