If you're one of Costco's more than 124 million cardholders, there's one brand name that probably pops up more than all the others when you scour the grocer's aisles: Kirkland Signature.
The Kirkland Signature Ultra Clean Liquid Detergent is one product that many Costco shoppers agree leaves a lot to be desired.
While the Kirkland Signature Original Bratwurst does have its fans, others say that you can do much better than Costco's version of this cookout staple.
The Kirkland Signature Bath Tissue wasn't always a highly-criticized product, but astute customers have noticed a major downturn in quality for the household staple.
Many passionate carnivores will attest that even bad bacon is good bacon. Unfortunately, that philosophy doesn't seem to apply to Costco's Kirkland Signature Bacon Crumbles.
If there's any grocery store product that you'd be better off leaving on shelves, it's one that doesn't properly do its job. The Kirkland Signature Dishwasher Pacs are guilty of this flaw, according to customers.
Many customers consider the Kirkland Signature Bar Soap to be a Dove knockoff, but they don't believe it lives up to the popular name brand.
To make matters worse, some members said the soap also leaves an undesirable residue in their showers when they use it.