I am surprised I didn't see pocket lint listed as a fire starting method. Most of the time you can find some lint somewhere. In your pockets, pack, bellybutton, etc.
My typical method, however, is the Vaseline and cotton ball method mixed as others have suggested, putting cotton balls and Vaseline in a plastic bag to coat the cotton balls before transferring them to a prescription bottle.
That being said, I usually have multiple methods on me at all times when away from home. Why complicate things when a lighter is a fine tool. Then I can go from that to the firesteel and cotton ball and in the worst cases I can start scrounging for pocket lint and birch bark. I also find that if I can find enough dry wood I can typically make shavings to get a fire started as well.
