1. Mini-Bic
2. Small box of regular matches in mini-ziploc bag, kept separate from the lighter
3. Small box of waterproof storm matches in a mini-ziploc bag, kept separate from the lighter and the other matches
4. Dry kindling collected from surrounding forest each day when I come upon it, kept in a separate ziploc bag
I come from a background where I didn't used to use a stove, instead I cooked all my meals on a campfire, rain or shine. I still cook as much as I can with wood, so I don't mess around with being ready to start a fire and having multiple backups. Though these backups cost me only 1-2 ounces. That's peace of mind that I enjoy, making the extra weight worth it.
And yes, I have had to use these backups many times before. I don't trust lighters, though when they work they are my preferred fire starting method.
One day I'll learn how to start a fire with a bow drill, but mainly just for fun. The fact of the matter is that a simple box of dry matches is about 1000x better than a bowdrill, and I can have these matches for fractions of an ounce, so it's not too hard of a decision to go with matches as a backup and call it good… At least for me.