Residential floor plans in 2026 are sadly lacking in laundry chutes, milk doors and dumbwaiters, but innovations in home efficiency continue to evolve. Case in point: the Costco door.

Named for their popularity among fans of the bulk warehouse, these miniature doors connect a garage to a pantry or kitchen so that shoppers can deadlift 25-pound bags of Jasmine rice and liters of Kirkland Signature olive oil directly from the trunks of their vehicles into their homes rather than transport them in multiple trips like pack mules.