Every so often, I go thru areas of my sewing room and wonder why I have what I have there. Then I think about whether I'll ever use it and if I can't think of a reason, it goes into a container for our thrift shop if it's items they take. So far I've gone thru most of my fabrics and if the fabric doesn't sing to me, it got tossed into the container. I came out with 8 large brown paper bags full of fabrics that didnt sing to me, some were quilting cottons, some were dress fabrics. I do this every couple months or so as I get older. I also go thru the house and do the same, less dust catcher as I hate dusting anyway.