I keep Sure2Burn fire starters packets and a bic lighter in my hunting gear as my "sure fire" emergency option. I have a ferro rod on my knife and cary jute twine for a second option.

I love the Sure2Burn packets they pack small, work everytime, dont dry out, I have never had one fail. They make fire starting kinda boring, cause they just plain work; but that's exactly what I need in a real emergency out in the woods.
I highly recomend these in any kit...