Probably still have some C & C thread around, but was given lots of spool ends of polyester thread from a sweat shop that closed. It was being thrown away. I was going to give it away, but never got around to it. It sat in a corner for yearsssss. One night I was going to hem the binding on a quilt and didn't feel like going out (gas $$!) and thought I'd look in the bag of polyester thread spools. Found one the perfect match for color. Fired up my needle and started hemming. WOW! Fantastic! Doesn't knot and I love it. Haven't tried it in the bobbin, but that is next.
Happy quilting.