why not take the LACK shelf and flip it, so the shelf side is facing into the room? You might need to get a little creative with the mounting hardware, but this is a great way to create some semi-concealed storage and reduce visual clutter.
Over the door storage for a small Bath with limited space and no linen closet. To maximize space in the bath add a shelf over the door to store extras like toilet paper and extra towels. What a difference such a small change can make!