You probably never thought you'd get nostalgic about a piece of furniture. But that was before your brand-new dining-room chair suffered a scratch the length of your forearm during an impromptu indoor football game. Look in any perfectly tidy, tastefully decorated room in your house and you probably can't see the big picture for the dings, chips, gouges, and holes. (They're glaring to you, even if invisible to others.) These small problems, fortunately, require only a little time and effort to repair. Here, you'll find the best shortcuts for covering up minor imperfections in your walls, floors, appliances, and furniture. And, yes, any chairs that may not have made it to the end zone.