floating shelves in a nice rustic-y wood // DIY-Floating-Shelf-Tutorial - half bath on main floor could use some pretty storage space. Great for master bath.the problem solved for the space over bathtub.
Plant holders make great hair styling supply holders. Instead of hanging plants in them, you just mount them to the wall and put your blow dryer, curling iron and other hair supplies inside 30 Brilliant Bathroom Organization and Storage DIY Solutions
Home Ec: How to Save Your Plants (and your Money!)