It’s not surprising that the couch is the focal point of most living rooms. It’s often one of the largest pieces of furniture, and family and friends alike make a beeline to its ample seating. Over the years, however, a sofa can become stained, outdated, or saggy, tempting us to bite the bullet and spring for a new one. But you can upgrade your sofa without buying new. So, before you buy, check out these clever ways to revitalize an old sofa.