It is honestly one of the most simple and inexpensive things you can keep on hand. When the weather is nice and the store is stocked, grab a few gallons and throw them in a closet or garage. Whether you need it for drinking and cooking or to help keep your refrigerator cool (a couple frozen gallons in the fridge makes a big difference), you won t have to worry about the mad rush at the grocery store.
Alternative Lighting
Candles, flashlights, any kind of illumination that doesn t require electricity is great. A lot of new flashlights come with USB rechargeable batteries, but for the one s that don t, store the batteries with them in a closet. These are also just handy to have around in the case of a normal power outage or searching for your cat, who decided to get into the crawl space in the bathroom somehow and you cannot see her when it s midnight and she s crying.but we digress.