I'm late to chime in, but I'll offer a few things I have learned. I keep a small fire kit in my day bag. It consists of a Bic lighter, a small ferro, damp light match pack, twine for tinder, and Wetfire fire starters. 99% of the time all you will need is a lighter, but it is nice to have other options. I keep a larger kit with more options in my ruck.