The list author says: "This could be a "get home bag" for longer periods (72 hrs tops); compare my EDC Listmania, which I think of as a "get home bag" for shorter periods (maybe 24 hr). This might also make a passable minimalist "bug-out bag."
For keeping in the car for extended periods, I omit any sort of fuel (alcohol, butane, etc.) or food that will spoil quickly. And the idea is to keep it light enough in case you need to leave the vehicle and carry it some distance. To meet these goals, all gear should be light, compact, and/or multifunctional. 10 lbs may seem like a light target weight, but I don't count clothes in the weight since there's too much variability. It also doesn't include the weight of water, which weighs 2.2 lbs/liter (over 8 lbs/gallon).
A number of options are given for some purposes, esp. for shelter/sleep systems since this will vary a lot depending on your climate. Depending on what you choose, you weight total may be more or less. Additional cold weather gear, and some extra gear that should stay in the car, toward the end.
Some weights are approximate, some my own measurements, others are manufacturer's spec. Total weight of items with an asterisk * = 8 lbs, 5.2 oz (not finished yet)"
"*Newer version has integrated whistle on cord-lock. 2032 lithium batteries last long stored in a wide range of temperatures. I like a handheld flashlight for everyday, but a headlamp is great if you need to work on your car or walk far in the dark. White and red lights (help preserve your night vision), both with flashing modes. Weight w/case (manufacturer says 28g w/out) 1.75 oz 50g"
"*I like the idea of being able to have a knife, a fire starter, and a whistle in one neat package, esp. since the earlier version of the e+LITE headlamp didn't have a whistle. If you need to go super-minimal, just stick this and the e+LITE on your belt or lanyard. 2.8 oz 79g"
"*I put the Ratchet version here for variation (see my EDC Listmania for the normal SwissTool Spirit Plus, with a tool listing). Note that I think the picture on Amazon is wrong; the Ratchet version does not include a corkscrew and eyeglass screwdriver (the normal SwissTool Spirit Plus does). 7 oz 200g"
"*For storing and purifying water. 32 oz size (& opaque) for tablets which treat 1 liter. Wide mouth fits many backpacking filters. Steel (w/o cap) can be used over a fire for purification by boiling. Steel seems thicker than the Klean Kanteen (which I love for EDC). When used with the Human Gear Cap (below), no leaks in my experience. 12.3 oz 348.7g"
"Replacement cap for the Nalgene/Guyot or uninsulated Klean Kanteen steel bottle. Allows you to drink more easily from a narrower opening and control flow better when pouring. Small cap stays tethered for drinking, but the whole thing comes off more easily than the Guyot, in case you need to use the bottle over a fire. 1.4 oz 39.7g"
"*Various sizes; roll up and secure with attached elastic cord. 900 ml is a good size for water treatment that uses 1 tablet/liter. Lighter than a steel bottle, but gives you fewer options. I'd carry both; since water can take up to 4 hours to treat, you can be treating a liter in the Evernew and then transfer it to the bottle for drinking while you purify another liter. 1 oz 28.4g"
"*Get news and weather, plus extend the life of your cell phone for more news/communication ability. Charge via mini-usb, solar, or hand crank: great options for something that may sit unused for a while. 160 model has a standard USB output, so no special adapters are necessary for cell phone charging (as were needed with the 150). 8.49 oz 240.6g"
"Looks like a ruggedized version of the FR160 and shares the same features (crank or solar charging, AM/FM/weatherband radio, flashlight, USB output for cell phone charging), but adds a built-in clip (for hanging in the sun) and digital tuning (rather than dial). A bit chunkier and heavier than the FR160."
"*Longer and longer-burning than the BCB/Nato wind- and waterproof matches. Very similar to REI's. Although you should be able to light them in the rain, you'll still want to store them in a waterproof container. .65 oz 18.4g"
"*Sure, you can make your own tinder (a popular one is cotton balls with petroleum jelly), but this stuff is good and inexpensive (if you're not using it on a regular basis). Weight of 10 pcs .25 oz 7g"
"*Choose from the .3, .5, or .7 sizes. The recommended size for this level of kit seems to be the .5, but you might want to try customizing a .3, or just constructing your own kit, of course. Weight for .5 size 3.68 oz 104.3g"
"*I use the Evernew Companion Cup (400 ml), but don't see it on Amazon. This may actually be better, since it has a lid and has a little spout if you want to pour your boiled water into a water bottle. Perhaps redundant if you have a steel bottle, but something like this is necessary if you just use plastic water bottles. Old-schoolers may prefer a steel Army canteen cup. 2.6 oz 74g"
"Good alternative to my mug/candle (2 items above). 1) No need to hack a mug support. 2) Use it with very small firewood (kindling-sized), so no need to worry about running out of fuel. Use Esbit tabs to help get the fire going or use Esbit alone. There's some confusion about the weight. I believe it is 7.5 oz w/out fuel. Some sites list 19.8 oz, but this is the fl. oz. capacity of the cup."
"*I like a folding spork for EDC, but non-folding is easier to clean and won't fold-up or come apart at a bad moment. A spork isn't necessary if you just plan to eat food bars, but I like to have one anyway. .35 oz 10g"
"*A 3600 calorie brick (mostly flour, shortening, & sugar) is 72 hrs worth at the minimal level recommended for land survival (1200 cal/day vs. 800 for in a lifeboat). Lasts 5 yrs in a wide range of temperatures and needs no preparation before eating. Apple-cinnamon flavor. Similar products by Mainstay (lemon), Datrex (coconut), ER Bar. 32 oz 907.2g"
"Another food brick (lemon-vanilla flavored). Note that when buying any of these sorts of things, the 3600-cal brick is normally in one sealed package. Once it's open, it's open. The brick is generally scored into smaller 400-cal sections that you break off. So a 3600-cal brick would be scored into 9 sections."
"Another food brick (coconut flavor). As with the other food bars listed, you can buy smaller versions (2400-cal. bar or 1200-cal. bar). I'm listing the 3600-cal. ones here because this is a 3-day kit. You could get 3 of the 1200-cal size, if you want to keep your day's rations separate (the unopened ones will stay fresh)."
"I've had no problem with alcohol-based hand sanitizer in a hot car, but use discretion. For hygiene, but can also help with fire-lighting. I like sprays better than regular bottles, since the output is more controlled and there's less chance of spilling in your bag. I've refilled spray bottles from jumbo refill bottles of sanitizer without problem. You can easily find similar things locally."
"*For personal hygiene (skin and hair), as well as washing clothes and dishes. Works in cold or salt water. Comes in sizes as small as 2 oz, but you can buy a large one and dispense into Nalgene-type bottles (which come even smaller). I think 1 oz is enough for 1 person over 3 days. I've had no leaks from my Nalgene, but pack it in a ziplock anyway. Weight in a 1-oz Nalgene 1.63 oz 46.3g"
"*Sure, you can wrap duct tape around an old credit card or a pen(cil), but these little rolls are convenient. Use for some minor sorts of car repair, fixing a hole in your bag or shoe, etc. Weight per roll 1.49 oz 42.1g"