In our new WFH world, you may not be dropping off your Secret Santa gift in person. But fear not, as the M&S Christmas Treats Letterbox (£18) provides the perfect solution that can fit, you guessed it, through their letterbox. With shortbread Christmas trees, chocolate coins, Christmas jokes, and more, it's sure to bring the festive cheer in the post which is always a welcome surprised over a dreaded bill.