What is that “dingy picture”?
When the grand-kids ask what the dingy picture on your wall represents it might be time to consider getting the old family favourite restored and reframed.
It isn’t that the picture is any less attractive than the day you were given it, or bought it. It is simply that you are looking at it through decades of accumulated dirt. The chips on the frame that once added ‘character’ now just look old and not so nice.