At the end of the world, often the only comfort to be had is next to a roaring fire. It’s also a matter of life and death. Make sure yours lights every time with Adventure Medical Kits’ SOL Firelite flint and Tinderquik tinder. When lighter fluid runs out and matches can’t be found, the 2.3-inch-long sparker operates one-handed, much like a lighter: A simple flick of the steel wheel creates friction against the internal flint to create an earplug-size spark that you can easily shoot directly at your tinder. Tinder-Quik (tightly-wound cotton coated with paraffin) nets you a minute and 45 seconds of burn time—plenty, assuming you’ve collected fuel from the woods or back in town.