I just finished about 1/2 of my fabric using this idea. I haven't 'worked' with it yet, but so far I LOVE it. I bought 10 of the core boards, cut them up as ncredbird suggested and they fit perfectly on the shelves of a bookcase I have in my sewing room closet. Incredibly, I'm out of core boards and have to go back and buy ten more! May have to purchase another bookcase too! I did wrap most of the boards with acid free scrapbooking paper before I put the fabric on them to protect the fabric as best I can. I think this is a wonderful idea, the fabrics look so pretty lined up straight and much easier to make selections when getting ready to start a new quilt project (can't WAIT for school to go back so I can get started again!).