What type of clubs did you create using the club system?

I may have made a few woohoo clubs for when I really needed my sims to get a date...not my proudest moment. I've also made a slave club in the past. They cook my food and clean for me. What's not to like? I usually have clubs for the kids, too, just so they can make some friends.
Recently, though, I've been using it to make vampires clans. I'm having a lot of fun making the vampires for them, and imagining their backstories.