Using coupon sites such as couponmom.com and peapod.com can put a dent in the average $3,753 annual grocery bill. The survey calculated potential savings in the top selling food categories, including carbonated beverages, milk, fresh bread, beer, salty snacks, natural cheese, frozen dinners/entrees, cold cereal, wine, and cigarettes.

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With the aid of the Internet, you could save an estimated 25 percent on your annual grocery bill.