via Anatoly Zenkov
Anatoly seems to have created this program that maps the mouse activity on you computer. My map is for about 1/2 hour. The lines represent movement of the mouse and the dots represents inactivity with large dots showing longer pauses. I primarily use AutoCAD, so you can see that my image has a lot of horizontal and vertical lines given the nature of my work. Longer periods using the program can look really terrific with a lot of density of the lines.
You can download the program here.What does yours look like?