Never worry about starting a campfire again! You can easily prepare your own quick lighting emergency "char cloth" with just a tuna can, T-shirt, and a your barbecue grill.
Essentially the video describes making a quick and dirty DIY gasification stove -- like the ones many backpacking survivalists use to cook food -- but the focus of this project is simply to get at the valuable leftover charcoal without the (slight) added complexity of designing an efficient camp stove.
But if you already have a gasifying camp stove -- like the SoloStove or another homemade version -- you can now add versions of "char cloth" to your emergency kit. (I love the cotton balls idea!)