"I make firestarters with wax. Take one egg's worth of an egg carton, . . . blah, blah, blah"
Jerry: I like that idea a lot as a disposable mini-cooker. But for simply fire starting:
Two words: Wax Paper. Available at all stores and it makes a great fire starter. I used to save graham-cracker and wheat-thin inner liners, but most everything has gone to plastic liner bags now.
Two more words: Produce Boxes. Behind every grocery store are wax-impregnated corrugated cardboard boxes. I slice them into squares and strips for use as fire starters*. Carve a few edges with a razor knife to make a projecting sliver - those will light quickly from a mini Bic or match.
For car camping and sled-based winter camping, I bring dry kindling along. I always include some strips of those waxed produce boxes.
*In vehicles with faulty or nonexistent thermostat, a hunk of that waxed cardboard makes a great radiator cover to keep your coolant temp up during cold weather (like those zippered Naugahyde covers the truckers have). Just slip it behind the grill, in front of the radiator. Remove it before summer!