We’re sure plenty of people bring cans of Coke along for a treat once they’ve set up for the night, but did you know soda cans can make for handy jet stoves? Cut a can in two horizontally through the center and poke holes around the rim, with an additional one through the center.
Crimp the edges of one of the bases inward, and fill it with cotton balls. Cover it with the second base, which has the same holes, and pour rubbing alcohol or something similar over it to soak the cotton. You’re ready to go.
A Quick Raft
Rising water? What about an unexpected river that you need to cross? There are a number of situations when you have to deal with the wet stuff, but what if you didn't think to bring a canoe or anything of the sort? Here's a possible solution: You can make a raft by wrapping a collection of small branches in a tarp.
The branches trap air in pockets, and the tarp keeps it from escaping. This last-ditch effort might just work in an emergency situation, but we wouldn't trust it for more than one person if you have any other options.
Avert Your Eyes
It should be common knowledge not to look directly at the sun. The same holds true for a solar eclipse. For some reason, it's even more dangerous during a solar eclipse, since the light is a little more concentrated thanks to...space science.
Now, let's say civilization has ended and you had no way of knowing a solar eclipse was coming, let alone, getting special glasses that dim the rays. You can make your own by gluing solar film (that thing they use for tinted windows) onto an empty glasses frame and watch away without going blind.
Preserve Meat on the Road
For some, hunting is a good bit of fun. For others, it's life or death. Transporting the meat you've gathered is an important part of the process. The best way to do this is to hang the meat over a fire to smoke it, which will dry it out.
This helps preserve the meat, and also gives it a nice smoky flavor once you chow down. Obviously, this tactic won't make the meat last forever, and it should still be cooked properly, but you can keep your food supplies high or bring back a bigger haul after a hunting trip.
Keep Food Fresh Longer
Blackouts can hit anywhere, but places that suffer from storms like tornadoes or hurricanes are in greater danger. Blackouts can last from hours to weeks, and if they stretch on, your food can go bad. Keep a bunch of water bottles in your freezer (plastic bottles, so there are no bursts) so they freeze up.
If the power goes out, put the bottles in your fridge to let them contribute to the cold, and avoid opening the fridge if possible. This also lowers your power costs while they're sitting in the freezer since it doesn't have to work as hard.