These insulated six-pack holders are perfect for road trips. Unlike a cooler or ice chest, they take up no trunk space, but still keep drinks nice and cold.
They'll retain heat for hot drinks, too, but I can't think of too many bottled hot drinks that you'd want to carry around.
The totes can hold both bottles and cans, since the neoprene pockets are stretchy, and the ergonomic handle makes the holders to carry if you want to take it to a ballgame or on a hike.