I changed the tube tonight. Yep. Snake bite marks the width of my rim. It was a pinch flat. I also packed my velcro straps in the repair kit. They're for hanging the pump on the top tube. In retrospect, I probably could have done that with rubber bands from the office supply cabinet. Oh well.

I gotta say this pumping the tires every time I ride is sort of a nuisance. My MTB tires seem to do fine for weeks.