Yeti Tundra 65 Cooler
My power was out for seven days following Hurricane Irma. Only because I had invested in two heavy, insulated wall coolers, my wife still had ice and cold drinks after those seven days while I was deployed following the hurricane. (I like to have one cooler stocked only with ice, which gets opened only to refill the drinks/perishable cooler as required. This helps the ice last longer.)
My wife may not have had air-conditioning in 92-degree weather, but she had cold drinks, and that made a huge impact on her mental and physical well-being. I’ll never waste money on some grocerystore Igloo cooler again.