What is Wayfair’s Way Day Sale? Way Day is Wayfair’s annual seasonal sale, where the entire site sees significant discounts on categories across the board. Plus, depending on the shipping method, you can shop Way Day deals and have new outdoor furniture and more hosting essentials in time for the Memorial Day weekend. Way Day usually only lasts a couple of days. Way Day Outdoor Furniture and Grill SalesWay Day Furniture SalesWay Day Appliance SalesWay Day Mattress Sales