Meerkat has a valid point that should not be ignored.
Too often people romanticize "survival". If I have to live in the dirt, i would just as soon go down swinging early on. The 'ol bod probably isn't up to it any longer - living rough for extended periods, that is.
I imagine there will be some gruesome times prior to a total collapse like some talk about. Fascism, totalitarianism, communism... all those "ism's" with martial law, internment camps, people disappearing, being labeled a "enemies of the state" and "terrorists", not being allowed to buy or sell without approval. That sort of stuff. Its already in the works. No stopping it now without a civil war.
Maybe my grandchildren and your children will have to live in a teepee once the dust settles, but it won't be my generation.