I bring my Leatherman multi-tool and a KA-BAR USMC 5-1/4". I've had the old ka-bar on every trip, it's a tough knife and use it for everything from splitting small logs to filleting fish, and it's not too large to carry. The Multi-tool has obvious uses, but the wire cutters saved my thumb from being torn to shreds when me and an big northern were hooked together on opposite ends of a Rapala. Now I keep close at all times.