I buy fat quarter bundles or jelly rolls or layer cakes and usually 2 coordinating fabrics from the line that I love for sashing and borders and binding. I buy usually 2 yards and 3 yards. Then I find something for the backing at my LQS. I'm not good with matching colors yet. I've been quilting since 1992, but colors are hard for me to mix together. What I think matches, the gals at the LQS say don't match, so that's why I buy fabric lines unfortunately. Maybe someday I will understand color better. I buy kits a lot too so I don't have to select fabric.