Eh !!?!
Assuming winter, I'd bring in plenty of logs, light the log burner, Wrap a potato in foil and stick it among the flames. Grate some cheese, open some beans. Pour a glass of wine.
Then I'd light a hurricane lamp, curl up on the sofa and read a book.
If however, the OP is talking about an apocalypse, we have a well in the garden for water, and food in store to last two or three weeks. If it goes beyond that, a12 bore and two slabs of cartridges to provide us with rabbits and pigeons. It's not something I intend to worry about.🙄