Real Simple magazine has some helpful interactive tools on their site. Of my two favorites, one is the Seasonal Fruit and Vegetable Tool, which not only tells you what produce is in season, but also tells you how to buy, store, and cook each fruit and vegetable. The Food Expiration Tool helps you look up common foods and determine how long you can keep them before they are past their prime. Particularly handy to avoid wasting precious resources!
Real Simple Food Calculators