Peeling wallpaper should be removed immediately and replaced with a fresh coat (or two) of paint.
This is especially important in bathrooms. Here, you should either paint a neutral color, or the lightest color that will match the existing tile.
This is the same for kids’ rooms. If they need a fresher look, then go with colors that are as neutral as possible.
That way, while buyers look at the house, they’ll be looking at the home for itself, not for your own decorating abilities. Furthermore, this allows them more of a shot at imagining the way their things will go into the space.
Straighten the Closets