Promising review: "I don't know what kind of sorcery this is, but these things work. It used to take three cycles to dry my comforter and bed sheets. I'm one of those set-it-and-forget-it people, so I'd always forget to turn the dryer back on for round two and three, which meant that at midnight, when my husband and I were about to pass out from exhaustion, I'd remember the sheets and comforter were still in the dryer, undoubtedly damp because I didn't run them through the dryer another two times. So I finally bought these puppies and as usual, I dried the comforter and bed sheets once, and forgot to check on them. That night, my husband asked where our sheets were since they weren't on the bed at bed time. Then he groaned, and asked if I remembered to really dry them. So I checked the dryer and lo and behold, they were dry!" —Gabby
Get them from Amazon for $8.