This image represents two years and more than 10,000 miles of GPS track logs:

I’ve saved every track log and waypoint since I bought my Garmin GPS 60, and today I imported all those files (saved in .GPX format) into Google Earth. I would someday like to do the same with the tracks from my old GPS, which is another 2.5 years and almost 10,000 miles, but it’s a time-consuming process, and I’d have to be pretty bored to do it.