Produce
Produce is often marked up as much as 75 percent. Buying in season is the best way to find a bargain (and give you the best flavor). As we explain in our Seasonal Savings post, look for deals on grapefruits and oranges in January, asparagus in March, and melons in May. Also steer clear of precut veggies and fruit, which often have an additional markup of about 40 percent.