200W Car Power invewrter, DC 12V to 110V AC Car Plug Adapter Outlet with 24W USB-A/C, Power Inverters for Vehicles for Laptop Road Trip

So, it takes a while to prepare. Purchase some flashlights or lanterns that also have usb that you can use to charge your phone. Get multiples. If you have a car, you could take care of 3 things. Get a battery pack that will jumpstart the car, has a tire inflator, and also has a way to power other things. With the 12 volt plug, you can buy an inverter or get one with a built in invertor so you can plug in a lamp, etc. https://www.walmart.com/ip/13035281?sid=99c91609-4e29-421b-ad6c-5e85f1352450 https://www.walmart.com/ip/16486403512?sid=c7518c4f-a236-44be-a37d-9ed3c8995eba If you can swing it, get a chest freezer. If power goes out, you can put thing in there and they will stay cold or frozen a lot longer. Since cold air falls, you can open the lid and grab things without losing all the coldness. Get a propane camp stove or propane grill. Keep things like pasta and canned chicken on hand for this type of thing.