Learn how Costco online shopping works, including non-member options, fees, and delivery, plus tips to save when ordering ...

a costco branded shopping cart with red plastic handle in a parking lot - KK Stock/Shutterstock Costco is known for its members-only shopping, Kirkland Signature items (which are often popular ...

Costco is offering a new perk for its members in Washington and California. According to a new report from CNBC's Christina Farr, the warehouse chain has partnered with Instacart to offer a one-hour ...

Costco Wholesale Corp. is testing prescription drug delivery via Instacart in California and Washington. San Francisco-based Instacart confirmed news of the pilot, first reported yesterday by CNBC.