Costco has earned its reputation as the go-to store for great deals on quality groceries and household essentials. In fact, members of the warehouse club get such a good deal on what they're buying that a recent Consumer Reports analysis found that Costco has the cheapest groceries out of dozens of major chains nationwide – to the tune of over 20% lower prices compared to Walmart.
But many of the best deals found in the store are on bulk buys. For a big family, working your way through a case of 60 eggs before they expire might be no problem. But once your kids move out and you're back down to a two-person household, there are some groceries that you should never buy in bulk because you just won't be able to use them before they expire.
