reminds me of the back-to-the-land movement and the foxfire books. their impetus in the 60s and 70s was a retreat from the complicated, (inter)dependent, technological ecosystem of a modern metropolis; towards a simpler redundancy structured around puritan hard work, self-sufficiency and independence of the farm and barter village. james burke had an excellent tv show in 1978 called "connections" covering science and technology (episode 1 linked). the follow up series in later decades were not as good:
http://www.dailymotion.com/video/xnwpsp
it began by unwinding civilisation should a critical failure in a complex system lead to catastrophic and cascading collapse; then later trying to understand the connective steps taken from ancient pre-history to then present day.
most well-educated people lack the physical endurance, manual dexterity, strength and mental fortitude to revert back to pre-20th century agrarian survival. as we belong to a society of atomized individual consumers who receive instant gratification from novelty products which require little skill, patience or forethought to use. we depend mostly on mental faculties and the mechanical advantage of machines, with atrophied social and physical abilities. how many jokes, poems, stories or songs do you know? how many hours can you do hard physical labour for? professional sports and fitness industries artificially fill this void.
nobody can sell the things you actually need. the simplest short-term way to survive a disaster is to introduce yourself to your neighbours. depend on each other and share resources, car pool, grow food, recycle rainwater, repair broken things. you now have a backup network to the unavailable local, state, federal and international resources otherwise marshalled to aid you in time of need.
i will conclude my boring cliched opinions with this: i don't believe a disaster you need to prepare for is coming, nor am i convinced any preparation even on a whole city scale would be sufficient. should transportation and grid networks collapse indefinitely, you will likely die. if you live in a place prone to flooding, own a boat. if you live in a place with bush or forest fires, leave you homes when instructed. if you live along earthquake fault lines, avoid old buildings. if you live in a place with high crime, legally carry a weapon to defend yourself.sense became uncommon in a world without commons. if you care for my advice, i suggest you learn play an instrument and develop your singing voice, as the oldest ongoing human activity you are guaranteed job security even during ragnarok.