Imagine this, it's two weeks after the SHTF and you running low on AAs and there isn't a D cell around for 200 miles without a paranoid trigger finger between you and it. Your Maglite is dead, your comms radios are about to be done, and smoke signals draw too much attention. If you haven't thought about this before, then how about now?
How do you communicate privately? This is a problem that has plagued mankind for centuries and has entered a new era of need with the advent of texting, instant messaging and mobile phones. For all intents and purposes, all of that data is currently transmitted in the clear. Government servers get split feeds direct from the phone company. Texting is not even encrypted at all and law enforcement can get transcripts of messages. So how does the average person protect themselves and exercise their right to privacy?
Revolving credit is the most used and least understood lines of credit out there. Easy to get, easy to use, easy to abuse. Paying off your food stash and bunker is one thing, but while the world still operates, buying those things takes some amount of cash or credit. Lets talk about credit and why you want to keep some around, and if you have debt in revolving credit, in what order to pay them off. Keep in mind, revolving credit is usually considered expensive credit or high interest credit.
Brewing beer is actually quite easy and, its a free (as in beer) pastime. Yes the supplies might cost money and time, but the methodology is as old as civilization; thusly public domain. The basics are simple and provide a means of making good beer that you can enjoy, share and trade.