A fun surprise each morning and night.
Maybe I was naturally attracted to this project because it involves one of my favorite colors and one of my favorite patterns, Java by Quadrille China Seas. This is a great project for a renter or someone who is a wallpaper commitment phobe. Just a touch of some pattern for your eyes only!
If you are even scared of a couple of feet of hidden wallpaper, you could just paint the interior of your medicine cabinet in a fun contrasting color for the same effect. My vote, however, is for the full monty.