[Bones]

One thing I do when one is looming is to be sure all the vehicles are topped off and the obvious bit about filling up all the gas cans too.
I also used to take the bathtub and completely fill it for keeping the toilet in use along with a few jugs of water for drinking or whatnot. I used to have a well and that's why I did that, on city water now but even then I'd have a few gallons stashed at least.