A battery operated mini strobe is worth having if you need to be found in the dark.... I don't carry a lot of gear, lighter, cube of jiffy, water x 2-3 times what I think I will need, snack rations x 2 times what I think I will need, knife, gun and about 20-30 rounds (more than needed but could be useful for distress signaling if needed), first aid kit to suit the conditions..... 2.5 m x 1 m sheet of clear plastic (many uses)..... compass, gps and map if in unfamiliar area.... that's about it...
Edit.. 100ml of Isopropyl Alcohol and a couple of tubes of super glue (for any bad cuts etc..) hurts way less than stitching your self up lol....
Jeff