Day 7: Another family who lives in the neighborhood has spotted us walking to school all week and was inspired to start walking too, even though they live several blocks farther from the school than we do. That alone makes the week worth it, I think. I've also asked the principal why they don't have a bike rack. The answer? "Because no one's ever ridden their bike to school before." I find that really sad and am bringing the issue to the PTA.

Other things that make this whole week worth the effort: My new, more shapely calves and the fact that I haven't spent a penny on gas all week.