Shay Sends Smiles offers Discounts and Promotions on Flat Rate USPS shipping shipping all year round when your purchase 2 or more items to enhance your shopper experience and to save you money. With the holidays quickly approaching this is a great way to shop early and to know you’re saving.All flat rate shipping is based on location. Additional items are based on the size of the exterior shipping container and the quantity or amount that can fit comfortably in the single container. Shipping Rules, Promotions & Discounts apply to like or similar items, for example, single items purchased together could qualify for shipping discounts or 2 three piece sets…