When I had things organized, I used cubby shelves that stack. They were great for laying flatfolds and sorting by color. I had three units stacked and four across. The shelves were deep enough to place the flatfolds in the shelves with just enough to see all the fabrics. I thought that would be the end of what I needed to be organized. It worked for a while!
I have fat quarters stacked on end in bankers boxes, by color.
I have more fabric than shelves now that I have started buying bolts!
I need to do more sewing and use what I have! :?