If you're a Costco member, you probably recognize its enormous boxes of plastic wrap, but how much use can you get out of one ...

Boxes of Kirkland Signature Stretch-Tite Plastic Food Wrap in Costco - The Image Party/Shutterstock ...

Costco shoppers love the new Kirkland Signature Sweetened Dried Mangoes ( $11.29 ). "Great replacement for actual sweets. I ...

Costco’s private label, Kirkland Signature, is not your average bargain-bin brand, and calling it a “generic” label doesn’t quite cover it. Costco partners with big-name manufacturers ...

Costco co-founder Jim Sinegal sat down with The Wall Street Journal to discuss how he built the $86 billion label Kirkland Signature and why he was so reluctant to get into the gasoline business.

Costco members love the deals available at the meat department. "For me their meat department pays for our annual membership.

Costco’s $86 billion Kirkland Signature brand went against industry standards when it was launched in 1995. WSJ breaks down why the private label is now the retail behemoth’s secret weapon.