While I've never done any such thing, I think it could definitely come in handy, if you were an out of stater who was accepted into a state school. That way, you could defer your admission, and move to said state. Live and work there for year, and viola, i) You become a state resident and pay state tuition fees, ii) You've earned enough (hopefully) money to help get you through the first year, or a big chunk of it.