Duct tape has to be the 11th essential.
I'd also add signaling device--Mirror. An iPod screen can be used in a pinch. But my mirror is .5 ounces.
I use Chapstick as firestarter. Just put a little on paper, a leaf, whatever, and light it up. Napalm. Fritos and Doritos work well too. They burn for a loooooongggg time.
