On Saturday evening, my car's odometer reached the 20,000 mile milestone on the way to San Francisco. I purchased that vehicle back in 1999. It has the distinction of being the first and only one I've ever owned. Considering that I've commuted by mass transit for so long, I must've logged most of those miles on the weekend. Random calculation: If I drove at the speed limit over the last four years (unlikely) and averaged 25 mph, I've spent roughly 800 hours in that car. Thank goodness for comfortable seats.