This is my "fabric snob" story. Some years ago a member of the guild I was a member of moved to southern Florida.
She told me that if I ever had surplus fabric to give away that her guild there was very active in making chairity quilts.
Now without attempting to profile, think about where those chairity quilts might be used in Southern Florida.
I made up a box and sent it off. Now all the fabric was of suitable weight for quilts and certainly suitable for chairity quilts.
In due time I received a letter with two checks and a note saying..."The quild only makes chairity quilts from 100% cotton and will only pay the shipping for the portion of fabric you sent that was 100% cotton. There were some blends in the box and I'm sending a check for the difference" . The blends were 50% cotton and poly and not the 80/20 so was very suitable for quilts.
Needless to say, that group never got any more fabric from me.