I am tired of repainting! Does anyone have any ideas for protecting paint from dirt and small scratches caused by playful dogs rubbing against painted walls? Or do you have ideas about an alternative surface for wainscot area that's not too expensive? I thought about wood, but it still scratches and is not cheap either. I wondered about coating the area with some satin polyurethane, but don't know if that's a good idea...plus still worry about the shine. Any ideas?