off the top of my head: beef jerkey & peanut butter - good calories, fats if you need them, salty to help with hydration stuff bottle of water (1L) - you can survive on this for a few days if needed extra set of clothes & shoes - in case you get wet, cold, smelly, can also be used for survival tools knife - one that could be multifunctional... size large contact case, solution, glasses - I'm blind as shit without them, the zombies will get me extra hair bands - they have utility beyond keeping my hair off my neck while i'm hiking but, let's be realistic, a go bag with no destination in mind doesn't make sense. If i'm just trying to grab stuff to get out of the city and think i'll be to safety within a day, all i need is my transportation.