Sorry, members: Costco is ending its three-warehouse test of curbside pickup without a national rollout . At least there's still same-day delivery through Instacart! Thankfully, Costco appears to have been quietly adding another convenient way for you to shop without actually having to wander the aisles of your local warehouse. When it comes to delivery orders , time is often of the essence. So what's not on your to-do list on a busy day? Standing at the window as you wait for a driver or truck to arrive. But maybe you do have time to head to your neighborhood Costco and grab items from a pickup locker. For members near at least one California warehouse, this is now an option. Related: Best Supplements To Buy at Costco, Say Experts A Reddit user recently posted about the pickup lockers at the Costco located in Redwood City, Calif. The big, white lockers have eight openings that span across four towers. There's even a screen for selecting orders. Technically, this isn&#