If you're camping or stuck out in the middle of nowhere, chances are, you could be faced with dark and freezing cold nights. Learn how to make a simple camp fire out of flint and birch bark. This is for in case you do not have a lighter on you at any given time. To start the fire, you're going to need some bark from a birch bark tree. You're also going to need a flint and a paper napkin as well. After you've gathered the proper materials, just look for a barren spot on the ground, place your shredded birch on top of a ripped up napkin, add some twigs and branches and try to get a spark using your flint. The fire will burn for a long period of time, as birch is quite flammable. This is an Excellent survival tip that anyone can use.