Take strong, thick thread, or use fishing line. Wire Saw Great for cutting small to medium sized logs, branches, etc. It can be used by one or two people. Great for fire wood and shelter making. Make a handle by bending a green branch in a bow shape and cutting notches for the saw.
Aluminum foil Take heavy duty foil to be used for cooking and signalling.
Take 3 feet at least. Zip-lock bag Take a large one for carrying water, and use it to keep your kit waterproof. For snares and other uses. Brass wire is good. Take as much as you can fit in your kit.