I too am a converted folder. I could not believe how much fabric I had, once I took it out of drawers etc, ruler folded it an put it in a book case. But it took up so much less room and is much easier to access, as well as letting me see a thumbprint of the colour/print at a glance.
To protect the fabric from dust and sunlight, I made a cover for the book case out of a plastic table cloth. My book case is about 3 feet wide by 5 feet tall. The fuzzy back side of the table cloth is a great design/audition wall.