I buy and store lighters. Get them at the dollar store for cheap or even Amazon. I have about 200. Lightweight, easy to pack, and a very tradable commodity. Most people can't make fire with sticks. I prep other things. But I think a simple bic lighter would be a great thing to have or trade. Just an opinion. Some things I prep I would never trade. I can make fire many different ways, so trading off lighters would be no big deal for me