Give old thrift store chairs a new look with this surprisingly simple DIY project. Remove the seats, make two simple rectangular boxes from lengths of wood, and attach them to the chair backs. Top the upper box with an upholstered plywood seat (easy to do!), and you'll have an affordable bench with the appeal of a European high-end antique. This classy piece will look comfortably at home in your entryway or dining room, or even at the foot of your bed.