Ditto on the flares and mule tape. Got a couple hundred feet of it rolled up tight and zip tied under the hood. Carry a couple short lengths for towing duties so I don't have to break into the "stash" unless it's necessary.
ANother tip, get some plastic coated tie wire instaed of regular baling wire. It won't ever rust and make a mess. Bit thicker than std tie wire too.
I have to try the soup can/gas stove. Sure it won't blow up???
I carry a 5-6' piece of fuel line. Good for siphoning.
Carry a small hand axe. Haven't had to use it to chop down a tree, yet, the saw has always worked, but had to use it to do some frame straighteneing once or I wouldn't have been able to drive the sled out if I didn't have it to use as a hammer. Kepp it zip tied away too since it's not a day to day tool.
Those little cordura tool pouches from Occidental Leather, I think, make great tool bags. Have 2 for different stuff in the sled and they're waterproof (not the zipper).
Put a small spring loaded carabiner on the end of your tether. Much easier to get on and off with gloves on.
Best tip, let your wife carry the beer. Lightens your load and doesn't get a shook up. If by yourself, "sleeve" the beers in your spare gloves/socks. Keeps form puncturing the cans.