Worst: Gel Dishwasher Detergent
On Consumer Reports, it’s been said that “The Kirkland Signature Gel is one of our lowest-rated detergents.” They continued: “It struggled with dishes, pots and pans, and resistance to water spots.”
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Worst: Canned Goods
You aren’t going to find the best deals on canned goods at Costco. Other stores sell the same canned goods for anywhere from 20% to 40% less per unit – especially when there is a sale going on at the time.