Before going grocery shopping, plan a "cook's choice" dinner, designed to use up leftovers. Toss the last bits of assorted vegetables and meats into a stir-fry, or chop and add to soup. French toast for dinner makes good use of stale bread and the last few eggs, while lasagne transforms scraps of meat and cheese into a hearty meal. After dinner, toss expired foods and wipe down the refrigerator. You're ready to shop!