Disposable beverage cooler: In lieu of a cooler, get a case of your favorite drinks, empty it and line it with two garbage bags (so it doesn’t leak), then put the drinks back in and add ice. Afterwards, put the whole thing in the trash.
41 Tailgating Tips That Are Borderline Genius - this link is actually for tailgating, but i would modify it so that all the components of the meal are separated but in the same container, then put into the cooler as a unit
Line a cooler with foil-wrapped cardboard; heat foil-wrapped bricks in a 500 deg. top with another piece of cardboard, and you've got a portable hot box to keep food warm for HOURS. Perfect for tailgating.