When rebuilding a civilization, knowing how to build a fire is a useful skill. This collection touches on various tools and techniques for building fires.
One of the things I realized when going through them is that you need three things for a good fire. First, you had better do the basic preparation in advance so that you don't have to scramble when you start the fire. Second, you need a fire source to get your fire starter started. Third, having a fire starter is the bridge between the fire source and the mature fire. (Child, adolescent and adult stages?)