Update: Yes, if you have prescription meds you’d die or suffer without, definitely pack an extra few weeks’ worth in your go-bag. And stick in extra glasses for anyone who wears prescription lenses. I didn’t add these because the former doesn’t apply to me, and I haven’t gotten around yet to buying the latter, but commenters have reminded me that these two things are at the top of the FEMA list.
Precious Metals – Investigate this for yourself, but I find the arguments and historical track records against fiat currency and the current rumblings of Government wanting to take care of your investments for you very compelling. Gold is easier to transport with the high cost to weight, but you might have problems cashing a gold coin for a tank of gas. Silver is where I have chosen to invest in precious metals.
Zombie Squads make up a small portion of the overarching prepper movement—people devoted to learning how to survive any disaster, from a house fire to a zombie attack. The movement, says Huddleston, an anthropologist at Saint Louis University and Southern Illinois University, Edwardsville, has grown “a ton” in recent years. “Because one, people are afraid of things in the world,” he explains. “And two, I think many people have had experiences with different kinds of small-scale or even large-scale disasters, be it Hurricane Katrina or Superstorm Sandy, and they see that there is some practical value in knowing a little bit or having a little bit”—such as knowing how to do first aid or having enough food on hand.
This group stresses being able to stay alive for indefinite periods in life-threatening wilderness scenarios, including plane crashes, shipwrecks, and being lost in the woods. Concerns are: thirst, hunger, climate, terrain, health, stress, and fear. The rule of 3 is often emphasized as common practice for wilderness survival. The rule states that a human can survive: 3 minutes without air, 3 hours without shelter, 3 days without water, 3 weeks without food. 
Personal defense items – such as rifles and heavy firearms – are going to be increasinly hard to manage the farther you move from steady supplies. Ironically, it’s firearms that help acquire more food, provide personal protection, and deter others from attacking. In a SHTF scenario, heavy armament is only good within fortified areas. If you want to stay highly mobile, switch down to a .22LR polymer rifle such as the Savage survival rifle or similar. Lightweight, collapsible, and perfect for hunting game. Loaded with subsonic rounds, it can also be a lot more efficient than heading off a target with a loud 30-06.