I'm a lighter guy, I carry the zippo my dad gave me 20 years ago. I've tried flint and steel, etc, but it's just not for me. So I certainly would never have looked at a fresnal lens until I received one as part of my Secret Santa gift a few years back. It rides in my pack fire kit on every trip. I have successfully started a fire with it once and the fact that the member made its own pouch for it is just icing on the cake. What gear would you not know about or not have tried if not for the fine folks here?