Not a big deal really, but I recently bought some panniers and for the first time ever I rode my bike to the grocery store today and picked up a few things we needed. It was only about 4 miles round trip but I felt good riding and not driving. I don't think the trip took much if any longer riding than it would have by car (I cut through a parking lot).

I'm not a true commuter but I plan to do small shopping trips, runs to the library and things like that by bike when I can. It's a start.