The get home bag, holding the gear to get you home and not mark you as a crazy person or target, should also be functional during daily life. Honestly, if you are not functional during daily life then you need to talk to someone about it. I will focus on getting home from work since most of us spend the majority of our waking time there. This can still work for other situations, the point is to critically and tactically think about the situation and the location. Hopefully this will help you get started on that path.
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?
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.