>>1814216this stuff might be /out/ 101 and I apologise if it sounds no-brainer but you asked:
>durationIf you are gone for a week or more, and you are in a crisis on day two, that's 5 more days of being on your own. That may or may not be something to mitigate with a fancy gadget.
>medicalAssess risks you are taking, prepare first aid/IFAk kit accordingly and learn how to treat effectively. Burns, blood loss, hypothermia, food poisoning, etc. Example: if you are swinging around a hatchet, bring a trauma kit.
>foodDetermine what your calorie requirements are for the amount of physical effort you'll be exerting. Add an extra day's worth. You won't have the luxury of begging or swapping food from friends. If you plan on cooking, make half of your supplies ready-to-eat. Don't be caught with a bag of dried beans and no means of fire because it's pissing out or you lost your canister.
>water2 water filters. The second make it a sawyer mini and duct tape it to your chest. Ignore the Rambos saying water filters are for pussies. Dehydration is a constant danger and is non-negotiable.
>defenseAt the very minimum bring bear spray and whatever noise makers. Obviously. A boomstick ideally, like a 12g with a couple slugs. Don't be the news headline we'll all be laughing at.
>clothesAgain, you can't borrow clothes. I bring lightweight merino baselayers when I camp in summer as jammies if I need em. If I don't, I certainly don't regret the extra volume and weight. Been through too many hellish nights freezing my ass off to fuck around with that stuff.
>booze, drugsnot telling you how to live your life, but don't get too fucked up. Don't get so drunk you do dumb risky shit, don't get so high that you are in a state of frozen terror every time you hear a coywolf howling. Again, you'll have no friends as point of reference.