Mostly but not totally tongue in cheek.
I have a camper with a refrigerator, I have a boat with a refrigerator. On board both as well as my smaller boats I have coolers. My coolers are stocked with water, snacks/sandwiches and adult beverages. My goal is to return to either the camper or boat and pass by a location to replenish ice and adult beverages within less than an 18 hour period. Any cooler that is not totally Styrofoam will meet this objective. I have several in several sizes just in case friends are along.:W