I've futzed around with a lot of stoves in my day and settled on the Mini-Trangia alcohol kit (obscured by my windscreen here) as my "emergency" cook kit. I find the squares of roof-flashing awesome as wind screens. These are galvanized sheet metal but you can also get lighter aluminum ones. You only need the flashing on the windward side and you can leave the lee side open to manipulate the burner, pot, whatever. I always use the pot lid upside down--it's much easier to remove with the pot lifter and you can simultaneously warm things in the lid if you like.