Beyond all the sensible things I'ld do to keep me in the money.
I've always fancied opening some sort of club/house with multiple rooms; dancefloor, mashup room, kitchen, artistic room (painting/graphic design - anything created being the property of the designer) . Fully equipped with decks, lighting, speakers, broadband/pcs I just wouldn't supply the tunes. It would be free to friends and friends thereof. But bouncers employed to make sure it wasn't being inhabited by balloons, and medical staff etc.
Maybe I wouldn't supply bedrooms, but have it near to decent cheap hotels.
Just somewhere that would be open year round to whoever wants to go and get properly spangled in a safe venue for whatever length of time. I'm thinking more of a progression of the clubbing experience than Kevs club.