How do these people afford to do all this? My guess is they run up a ton of debt in doing so, which ironically makes them a big part of the problem that in many cases they are preparing for.
I don't know how "they" do it, but when we go shopping we always buy a little extra. 2 cans of coffee instead of one, and one goes into storage. I did spend some money on some long term storage food that was on sale at Costco but when you include the water barrel and everything that came with it, it was a bargain, plus you have all that food you can eat.
Our superWalmart sells long term storage food, my friend buys one bucket or one #10 can per month. It doesn't take long to have some food put away. Of course those spending all that money on guns and ammo, that I don't know how they can afford.
We used to be encouraged to have emergency supplies put away, now they call them preppers and put them on the terrorist watch list. I don't understand.