Why not put the money in the bank and sit on it. This is the method I live by. Extra money in the bank to use whenever I want. If you ever want to take a trip, the money is there, or even if you already have money but just want to supplement it you can pull some out. I cant begin to explain how nice it is to just have money sitting in the bank you know its yours and you can do whatever you want with it, whenever you want. Its really a liberating experience.