I think it is a great idea. If I like the fabric combination, I keep it together. I have some fiber boards that my husband cut into 5 inch by 12 inch pieces. I fold these combinations in such a way that all of them show and stack them in a basket. If I am not wild about the combination, I break it up and store it by color with the rest of my stash. I have gotten some really interesting fabrics this way and have been nudged into color combinations I have not used before.