Ballroom dancing!
One of the great passions of my life is ballroom dancing. I got started as a second year grad student on the Brown Ballroom Dance Team, which I kept with for five years until I graduated (including stints as webmaster, co-captain, and competition organiser). I still maintain ties with them, of course, but now that I've moved back to Illinois, I'm trying to get stuff started here.
I've been teaching a weekly class here at Knox in basic ballroom dancing, and there's a small and growing group that's really into it. Contact me if you're interested!