This thread reminds me that the big ol pine tree in my backyard is patiently waiting for me to come out and collect some more pine pitch. It takes a flame really well, helps the tinder and kindling get going, and a small film canister full weighs next to nothing and takes up very little space.

Pine knots work very well as fuel if it's wet out. (The end of the branch that grows out of the tree.) They're full of resin so catch well and burn brightly.