Clearly, I am newly obsessed with wallpaper.  It has been years since the word has been in my vocabulary.  Today, it seems a new and fresh concept especially for the bath.  It can add color and pattern and even architecture that is often missing in a space. If you are timid about installing multiple rolls of wallpaper in a large master bath, you can take baby steps by papering a powder bath.  The space will be transformed. And no need to be subtle with your choice of wallpaper. If you decide in a year or two that it is overwhelming or you have changed your mind about pattern, just take it down.