re - batting wrinkles.. for my sewing/quilting group, we use JoAnn's poly which is on a roll. It isn't the greatest to be sure, but it is what we can afford for a charitable group and is 48 inches wide.
About half way through the roll, the batt has always become twisted and has terrible deep folds in it. Putting it in the dryer does not help this.
HOWEVER, sprinkling it a bit with a few drops of water or putting it in the dryer for a few minutes with a damp washcloth will fluff it very nicely. I find it fluffs so nicely, it gathers up the batting a bit, so be sure you give yourself enough room, if you precut it for a quilt. This does work great and I am always bringing home the quilt and batting before we send the quilt to the next group of people to work on it - the "tie people".
Julie LOVE IN STITCHES - 3cats. Port Orange Florida