I've got a small pocket on the sheath of my knife that I carry during hiking trips. I'd like to fill the pocket with some bare minimum survival gear. It is a small pocket, about 1"x4"x.5". I can fit a swedish firesteel in it, and possibly another small item. The only problem is, I'm not sure what that other small item should be. If you had room for just one other small item for a survival situation in a northern woodland climate, what would it be? Also note I'm going to be tying some paracord around the sheath, so that won't be considered for being put in the pocket. Thanks.