Christmas is here, which for millions of Americans means preparing ... If you need to make a last-minute run to the grocery store to pick up something for your holiday gathering, Costco will not be an option for you this year, as warehouses will be closed ...

Time is officially running out to shop for Christmas gifts in stores and online for pickup and same-day delivery. The big picture: Most stores and malls close early on Tuesday for Christmas Eve and most will stay closed on Christmas Day,