Ever since I realized I could stream This American Life, from my iPhone while I’m working out, I have been a happy exerciser. The raw power of TAL is almost enough to make me work out more than twice a week. Last week, I listened to a great one, Santa Fight Club about these two rival Santas who literally came to blows over the future of professional real-bearded Santa-ing. Just don't listen with your young kids in earshot.