Pine resin is a great resource. If you find it, hang on to it. The sticky stuff can be used to seal wounds, and generally has some anti-bacterial properties, and is also useable as an adhesive. The hard stuff is useful for assisting in lighting fires in wet environments, so long as you can get a flame to it, and if you melt it down and mix it with powdered charcoal, or ash, or dried grass, or a combination of those things, then let it set hard again, you get something akin to hot melt glue.
Reblog: Tip 10.