Quote:
Originally Posted by
Master-Classter 
not that I have one, but here are some ideas:
communication - hand winding flashlight(s), mirrors, some kind of alarm or whistle
Food/Water - water bottles, protein bars, etc
first aid kit - gauze, alcohol swabs, needle+threads, sticks for splints, etc
tools - multitool, crowbar
Entertainment - seriously. Book, music player. It's as much mental as physical
definitely a sudoku puzzle book. preferably genius level, it will engage you for weeks.