Everyone should learn how to start a fire with a pencil sharpener. We all know, when you’re starting a fire – tinder is key. Great tinder burns easily, and if you’re lucky, is easy to source. Carrying a pencil sharpener will allow you to kick out a lot of excellent tinder for making fires. You can just fill up a small bag in your down time and toss it in your pack. It’s lightweight and works great.