What happens when you need to build a fire, but you forgot your matches and lighter? What if you don't know the fire-plow method, the bow and drill method, or even the flint and steel method (not that you would have flint, because you forgot your lighter)?
Watch this survival video tutorial to learn how to start a campfire with jumper cables and a car battery. To go along with those jumper cables and car battery, you'll also need a plain old wooden pencil and a knife to reach the lead inside.
Carve two notches in the lead pencil, exposing the lead, then hook the red and black lead of the jumper cables to it, and drop it in your tinder brush. Then connect the other ends of the cables to the positive and negative terminals on your car battery and then... flames!