Duh me, but I can't figure out why everybody puts containers of water (even ziplock bags) in freezer.
Frozen blocks of ice for when the power goes out and if need be drinking water, at least for the jugs and bottles. It helps to keep the contents of the freezer longer.
To keep the beer cold until the weather clears and you can get the grill started, silly.
It also helps to have water if you are on a well system that utilizes an electric pump.