I'm no good at limiting the number of times I open my coolers, or staging the coolers, and my companions are even less disciplned, so ... here's what I'm looking at splurging on. It runs not just on 12VDC and 120VAC, but propane also. 2.2 cu ft. Cools to 0 F (so I'll never run out of margarita ice).
I'd be curious if anyone has any experience with these, or suggestions for a superior alternative.