I rode to work today since I could not think of a reason not to. With both the bike ride and the subway ride being easy, I don't know what criteria to use for my decision. I realized this morning that I should be grateful for the good weather and take advantage of it.

The subway route is more vigorous than you might think since it's a little over a half mile between home and the subway station, and I walk fast and carry a heavy bag. Also, it involves climbing stairs, and I do that two steps at a time.