I have them separated by color if that is obvious, unless I bought something specifically to go with other fabrics. I have groups together that I have something "in mind" to use them for. I have a container filled with mainly florals or prints with many colors in them. I have all my large cuts stored together, unless they were bought to go with a specific group of fabrics or project. I buy mostly small pieces, so maybe someone who buys larger pieces has a better way for that type of stash.