10 Must-have Survival Tools You Probably Already Have

It's good to have a range of flashlights on-hand for different needs. fontgraf/iStock/Thinkstock

When the power goes out, so do the lights. Even if you have a couple of well-oiled generators, it's a good idea to keep a handful of flashlights — and extra batteries — around the house. Mix up the types of torches you keep: The big powerful ones illuminate the most, but they also take up a lot of space in a survival kit and can be a pain to lug around. Supplement with a smaller but longer-lasting flashlight. Energy efficient LED flashlights are a good place to start [source: Jorgustin].