Although PJ works ok, I make my own fire starter from candles, wooden matches, sawdust and cardboard egg cartons
Easy to make.
3 matches cut in 3 pieces each per dozen egg carton...
Put the non-match pieces of the matches and sawdust in each egg carton cup.
Melt candles and pour into the egg cartons until full.
Let harden until almost solid
Insert the ignitable match ends in with the match end barely sticking out of the candle wax.
Let harden overnight then break the egg carton into 12 pieces.
Store in a plastic bag until needed. I keep 4 pieces as such in all my backpacks.
When needed, simply spark up the protruding match heads. These fire starters once lit will burn even in pouring rain on average 5 minutes. Throw some dry pine needles or pine cones on and you will have a good base fire to add to in no time flat.
That being said, If I have access to dry pine needles and pine cones...which can be found under any large pine tree, here is no need for supplemental fire starter.