Stain/paint crates, add a pair of shelve racks, and you have an attractive storage unit for towels or anything else that requires easy access. Reinforce the crates by securing with screws through the wood into the wall.
towel rods on the back of the door- great idea for a space saver. Just need to make sure there's a door stop so they don't hit the wall :) was thinking of wallpaper on the back of the door behind the towel rack
Buy 3 different sized clear cylinder vases, a bag of white/tan rocks (or just pick some up outside), 3 fern leaves, 3 flat round candles in either a light green or tan color, lastly fill with water! All these items can either be bought at Michaels