11 Costco Buys That Get You Through a Week Without Power

A week without power is a long time, especially if you're older or living alone. These are 11 Costco buys that carry a household through seven days of a winter outage: water, food you don't have to cook, light, warmth, backup power and the one item that keeps all the others safe. Prices and stock vary by warehouse, and you'll need a membership. Never run a generator, grill or camp stove indoors or in a garage. Sources mentioned: Ready.gov, CDC, Consumer Product Safety Commission.