A lot of good information has been posted here! If your towels aren't very absorbent chances are the fabric softener in your dryer sheets has coated the fibers- as it is supposed to do. I never thought to actually wash the lint trap, but I do clean the dryer vent system with a long skinny flexible brush made for this, and I also vacuum the exhaust every few months. A lot of lint can build up, esp in the corrugated flexible exhaust hoses, and wherever there is a dip or bend. My father was a volunteer fireman. I have no idea how many washes might remove the chemicals from the dryer sheets, and didn't know they can beard through the fabric. I love the idea of reusing the bed dust ruffle center panel! People can be allergic to some scents and not others, the same as to certain cats, soaps, etc. It's not just fragrance that can trigger inflammations, so smell isn't a reliable indicator for dryer sheet safety. Thank You to all who will spread this information.