Probably teaching granny to suck eggs but in one of Ray Mears programs he mentions keeping bits of old inner tube as tinder. I got one from a bycycle and realise what a useful thing it is. Pushed over my staff to give a better grip,it's a super strong 'elastic' band, water tube and can grip slippy surfaces (using the staff as a bivvy pole was my original intent. When I did jui jitsu we used old ones tied to wall bars to strengthen our throwing movements.

qjs