Find practical answers to questions about painting trim and walls including baseboard heaters and over wallpaper, vinyl-clad wallboard, and paneling. Learn also about repairing a vapor barrier, repairing a doorknob hole in drywall, selecting a ceiling medallion, removing wall texturing, repainting walls in a smoker's home, painting and protecting dark-colored interior trim, and removing wallpaper and vinyl-backed wallpaper. These real questions and real answers may help you explore and solve your own interior wall and painting issues.