This is pretty cool. It's fun to go through these lists--I see an awful lot of stuff that I just 'leave to memory'...an increasingly dangerous practice as I get older.
It would be interesting to include how you tailor your lists to the kind of camping you do. That is, what the major non-eating, non-sleeping activities are, and the duration. We do mostly light car-camping with hiking during the day, biking to be introduced this summer. By 'light' I mean we're faced with black bear in the camp site, but we're also within 10 minutes of a pit toilet and within 30 minutes of a Starbucks. I bring 12 gal of water and seldom use more than 4 for drinking AND washing dishes, etc. We do 2 nights, 3 days, generally...so everything we take easily fits in one cooler and whatever packs in around in the back of the jeep.
Hiking requires only a few pints of water, which I can carry for both of us in a Camelback type unit. If we were doing biking or fishing, the list needs to get tweaked. We've never combined camping with off-roading, so Mike's list with tool kit, etc., opened my eyes a bit. I usually think one or the other.
I like sausage. This is the only point of contention in 'outfitting' ourselves for a 3-day excursion...how much sausage is appropriate. My spouse brutally points out that I've lost 30 lbs of unecessary mass, largely thru the reduction of sausage and alcohol intake, and I reluctantly concede the fight. I've found camping has become more attractive by bringing far less food and...beverages...and more water. Gosh gettin' old sucks.
The biggies for these micro-excursions are:
2 20L jerry cans of water
1 set of pots & skillet, camping style crap
1 set of the usual utensils, with wine opener
1 set of plates, bowls, cups
6 (or so) handi-wipe type reusable cloth towels
1 roll paper towels
2-3 butane lighters
1 bag charcoal
1 box of Baby Wipes--indispensible, possibly 2nd only to the water
1 bottle of sun screen (usually more like 3 bottles)
1 zip-lok full of single serving coffee and tea bags
2-3 small propane bottles (have never used more than 1)
1 Coleman propane camp stove
1 bag marshmallows (I hate them, but they're important)
1 bottle of eco-friendly detergent (dishes)
1 mondo flashlight for in the tent (spouse gets spooked by noises)
1 spelunking-type headlamp for in the tent (I like to read at night)
1 mondo lamp for the dinner table (I use LED battery now vs propane)
2 camp chairs (2nd only to the Baby Wipes)
1 Queen-sized inflatable air matress
2 big-ass double-wide rectangular sleeping bags (we don't do 'mummy')
1 high-speed internet connection (just kidding)
1 cooler full of food and ice