[Dulceácido]

If you're not afraid to go to a war zone, you could do almost any kind of labor contracting and make enough to only work a few months/year, if you chose. If you have a background in physical security, that pays big. Positions aren't limited to security, though. There are people who manage internet cafes on base that make $100k/year if they work year round... It's not glamourous work and it can be dangerous, but it would give you enough cash to enjoy your time off.