When shopping for cleaning supplies at Costco, look for these specific Kirkland Signature brand products that perform well according to customer reviews.

Kirkland Signature, and Palmolive—you probably can’t go wrong with most name-brand dish detergents. But ultimately, Seventh Generation hits all of the right notes for us. The primary job of a ...

While Kirkland signature dishwasher detergent has a large client base, it has also been the subject of complaints from those who have used it, said Jamie Penney, CEO of ShoppingFoodie.