wallpapering a bathroom is generally a bad idea unless it's vinyl wallpaper, even then humidity problems can cause undesired effects with the wallpaper glue. Better off going with acrylic paint or tiles, even tiles are a problem, cleaning mold and mildew out of the grouted joints is a pain in the ass.
I did pick up the cheap beer today. Woman at the cash asked if I was having a party. LOL no, I'm just cheap and it's a good deal....