I ride my bike to work in the morning (maybe doing some extra loops of central park), then I change clothes at the nearby YMCA. I've tried swimming as a way to balance cycling -- doing breast stroke -- so that my upper body doesn't shrivel as my quads get freakish.
Is this a good approach? Should I try weights instead? I figure that more cardiovascular excercize = better, just for general health. But my goals are largely cosmetic, rather than performance-oriented. What do other people do?