Want to kill a little time? Here are a couple of YouTube videos to help you. The first link is a Monty Python bit - need I say more? The second one is from a video series called Your Life's Work, a 1930's vocational guidance series . It's about ten minutes long, but is really a kick. The third one is a little video done in 1987. It's been making the rounds recently, and is very cute. Let's aerobicize!