You want a free edjamacation, shoved up yer ass a nickel at a time? Get an appointment to the military service academies.
Only one hitch... you commit to five years of service as an officer if you graduate (ten if you get pilot or navigator training). If you drop out or get kicked out in your junior or senior year, or fail to complete your commitment as an officer you owe the Feds a hefty chunk o' tuition (calculated at around $250,000 for all four years) or you can enlist.
Only one thing though... no Greek system - their equivalent of pledgeship is the fourth class year!