Survival Spark
Whether you're camping or preparing for the worst, the Survival Spark is a great thing to bring along. Its magnesium fire starter stick is good for up to 15,000 strikes and sparks easily with the large scraper. Also built-in are a compass and a whistle, and the whole thing comes on a lanyard for hanging around your neck. Lightweight and only 5.5 inches long, it's affordable enough to keep one anywhere you might need it, including your vehicle and your bag.