These membership-based retailers are similar, but depending on your needs, one may be a better fit than the other.

Costco’s famously affordable rotisserie chicken has held steady at $4.99 since 2009, becoming a staple for loyal shoppers. But the beloved product is facing scrutiny. Two class action lawsuits filed ...

Costco's Kirkland Signature line is known for its unbeatable prices, but not every product lives up to the hype. Here are 7 Kirkland products you should think twice about before purchasing.

Energizer may have the brand name recognition and cute pink bunny mascot, but Costco's Kirkland batteries are a great value. Which one comes out on top?

The verdict is in: Costco's fresh food court pizza actually has a different preparation method and ingredient list than its Kirkland Signature pizza.

Canned tuna is a staple, and you have quite a few brands to choose from — but when you're shopping at Costco, customers say ...