Normal grocery shopping. We've got candles and flashlights if the power goes out, and I've got a fully charged camping battery that I can use to power the oil furnace so we at least have heat. If the power goes out, we've also got a camping grill that I can cook on, and if worse comes to worse a box of MREs in the basement that I bought last year as a humorous "this is what Dad had to eat back when he was in the military".