If you have a small master bathroom, you may need to look around for storage opportunities.One solution is to install overhead cabinets or medicine cabinets. These can be concealed behind mirrored and handle-free doors, and they can be recessed into the wall so they lie flush with the wall tiles — this way you get storage without sacrificing any space at all. This is particularly easy to do if you have plaster walls.Tip: Run overhead cabinets from wall to wall so they look like part of the room, rather than add-ons. And make sure the mirrored doors extend far enough down so you can see yourself when applying makeup or doing other tasks.Other spots you could add storage in a small master bathroom include above the toilet, within the bath surround (a great spot for a recessed niche) or on the wall next to the bath (perfect for glass display shelves). Also, if you’re having a vanity custom-made, be sure to have it designed to maximize storage. Have the sink positioned to one side of the unit rather than in the middle so you can add in extra drawers.