Worst: DVDs
Costco may not be the best place for you if you are someone who’s still into DVDs. Unsurprisingly, if we’re going to talk about prices, Amazon definitely beats Costco. Not to mention that Amazon also delivers the discs straight to your house.
Worst: Gel Dishwasher Detergent
In an article by Consumer Reports, they revealed that the Kirkland Signature Gel is one of the lowest-rated detergents. They also mentioned that it struggles with pots, dishes and pans. They also mentioned its resistance to water spots.