The wife took CERT training.
As a result, we've got several layers of preparation: a bug-out bag good for a few days, a bug-out crate that we could get in the car and that would last us a week or two, and smaller stashes in each of our cars. My car is AWD, and I have a winch, spare tire, and empty fuel containers in the back. We have cell phones, crank-operated cell-phone chargers, crank radios, and out of town contacts who will relay messages for us.
There's a generator in the garage with a siphon for gas, although it's never been used. We have a 2.2kW solar array on the roof, which can (with a few shunts) operate off-grid.
There're water purification devices (both electric and hand-pumped) in several kits, in addition to an 80 gallon rain barrel in the back yard.
Then there's the arsenal to defend all this stuff, including both firearms, claymore mines, and more analog stuff for later, like crossbows and trebuchets.
We've hidden caches of food, clothing, medicine, fuel, and ammunition throughout the nearby hills. I have a GPS and spare batteries in each bug-out kit with the coordinates written in waterproof ink on tin sheets.
(While the wife went to CERT training, I went to "How to Sell Your Startup to VCs" training, where I learned to be a pathological liar.)