The poly-cotton does wonderfully for square dance dresses. Lots of ruffles, and after washing it never needs ironing and looks like just made. Too bad not too many people wear the dresses anymore. Most wear prairie skirts or pants.
I've used it many times in my scrap quilts. It does not shrink, but you need a little starch to hold a pressed seam. It also wears much better than all cotton. Two that I made about 15 years ago spent two years on a boat in the Bahamas and are still going.