I dashed off to the grocery store this evening to buy a few eggs and bananas for the morrow. Pedal, coast, park, off with the helmet and dork gear, inside, shop, pay, outside. Hm, that's what I forgot -- the bike lock. The bike was still there, thankfully, and in fact it was next to a mountain bike that was also not locked up. I had even remembered to pop off the bike computer ("it'd have been awful to have the bike *and* bike odometer stolen"), but not to lock it up. Yee.
I clearly need a car. At least it's a bit harder to steal a car with no key than it is a bike that's not locked up.