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If you've scraped your leg, you can use TP or paper towel to give yourself a harder scab to protect the wound. Once the bleeding's stopped and it's oozing the yellow stuff, put the TP on the wound and let it soak it up. Leave the wet TP on and let it dry.
Also, if you don't have a maul to split wood, but you don't want to get your hatchet (if you have one) stuck, carve a few hardwood wedges and use a big stick or a rock as a mallet. Use the hatchet to start a crack and the wedges will go in fine. Although you won't need to often, you can also use wedges to free a stuck tool.
Dryer lint makes for a great firestarter even in small amounts since it can catch from sparks fairly easily.