A spare room can quietly drag down a listing. It becomes the place where mismatched furniture, unopened boxes, exercise gear, and “we’ll sort it later” items collect. On camera, that kind of room looks even worse. In person, it can make a buyer forget the property’s best features. That is where the appeal of Cash in the Spare Room connects so well with staging. The show taps into a simple idea: unused space has value when people can see what it is for. A box room can become a