How have you utilized the club system from Get Together?

I've discovered a way to up my artist freelancer's money by having an 'Painting class' club. She is on level 10 and can mentor, so I get some students who are interested in art in my studio (like Salim from City Living). And mentor them, when they're done painting I'll just put it in my art gallery and sell their art (this way I don't feel like I'm stealing, it's like their payment from giving them classes!)
This was the best use of a club I've ever done.