This may sound obvious (and therefore totally silly), and I don't know if anyone has mentioned it, but NEVER share a room with your friends. As a couple, always get your own bedroom and bathroom. Otherwise, prepare to totally get on each other's nerves . We've done that a couple of times, and my DH refuses to share a room with anyone but me. I don't know what we'll do with any kids we ever have .
Hey!! Why don't you get your friends to go to Disney with you?? That could be just the right solution.