Probably just restating a few things, but I thought about it this way:
#1: Choose your disaster.
Natural, Economic, Governmental, Foreign, or X Product shortage (some bleed into others, but picking 1 in the line of 5 usually incorperate the 2 touching it too.)
Absolutely. Choose whether you want to prepare for a Mad Max End of the World scenario (very unlikely in my opinion), or, for something that resembles Argentina, Weimer Germany, etc. (much more likely in my opinion).
I think this is the absolute best book on preparing and living through what is likely to come. It is written by someone who has lived through it (practical advice based on first-hand experience).
Amazon.com: The Modern Survival Manual: Surviving the Economic Collapse (9789870563457): Fernando Ferfal Aguirre: Books