Susan Margaret - I have a similar system to yours but sometimes I found that I took a color from the color-sorted fabrics that I had originally purchased for
a coordinate in another quilt. I now have 20 clear plastic sweater boxes of
fabrics with a pattern inside for quilts that I am committed to making.
However, now I cannot contain my fabrics to one room and am using the attic, the basement and my sewing area off the kitchen to store all the fabrics I own.
good luck - Judy