For short-term: fish works well, especially if pressure cooked. Also, dehydrating just about any standard meats will last a really long time. I would also keep a big bag of sealed rice around, as trying to keep it paleo (thus low cal) is a bad survival strategy.
For long-term: I really enjoy that show "Doomsday Preppers", for how idiotic a lot of them are.....apparently, the plan for a lot of people is to build a fortress, store a ton of ammo, and keep enough food to feed them for the next 12 years....this way, once it is realized that you have a lot of things, it will be much becoming of a small army to come and take all of your shit....and also, once the food runs out, which it will, you can just hang out and slowly starve to death.
In THAT kind of situation, whereupon we essentially turn back into the stone age, the only currency will be knowledge. A person that knows how to grow crops, fix engines, hunt and trap, build shelters, make fire, beat you into a pulp and steal your girlfriend, will have an infinite advantage over a hoarder. If anyone's survival plan involves locking themselves inside a house, it is probably preferable to just die.
I will be out with a badass garden though.....and a 50 cal.....and homemade liquor
"Educating oneself is the paramount of liberty; otherwise mass franchise will only lead to mass deception. A citizen of our republic, and therefore an entire people, cannot be both ignorant and free." -- Thomas Jefferson
"Trying to convince every woman to love her body sounds like a lot of work.....can't we just find the ten women that do and emotionally destroy them?" - Me, while inebriated on homemade mead