We use them for (cotton batt like Warm-n-White):
dogbed filler for shelter
dragon pillow filler (see avatar)
mini projects like small pursettes for daughter
trapunto designs
long strips are GREAT for purse handles / quilted totebag handles
shorty strips are great for soda-can wraps
Poly bat is great for inside jackets / snowsuits for quick repairs on grandkids' winterwear...
also used lots of the poly to make a quick pillow to keep my keester warm at NFL games... just layer scrap pieces together, trim new larger squares, layer, top with fleece/flannel & serge... then bind, nice soft sit-upon for 3-hour NFL games :) stadium seats are hard!