Wholesale clubs like Costco can help you cut the cost of groceries by paying lower unit costs for larger, bulk-sized packages of food and household goods. If your household is able to use large quantities of your common items, then comparing prices between your grocery store and Costco is a good idea. If your household is too small to use perishable goods in bulk, you may want to consider teaming up with a friend or relative to divide large quantities of produce, meat, baked goods, etc. to take advantage of savings without wasting food.
The Coupon Mom's Costco list helps you compare prices by not only listing prices and sizes of the items, but also by calculating the unit cost of the item. You can select and print a list of items you use and take it with you on our next trip to the grocery store to see if buying some items at a wholesale club would save you money over the course of the year.