Use the rule of three

“When buying produce items that ripen, consider purchasing the individual fruit at different stages of ripeness. For example, I buy three avocados: one that’s ready to eat now, one that has a day or two to be ready and one that’s as hard as a baseball, which won’t be ready until the end of the week. I use this same trick for tomatoes and bananas—that way, I’m not throwing out food that goes bad before I can use it.” —Ken Immer