My husband uses Aqua Net for his hair even though I have told him millions of times that I hate it because it's like glue in a bottle, but he continues to use it. So my question is, how can I get the sticky stuff off of the pillowcases? It's like little balls of glue stuck on the fabric and it won't come off. I've already tried soaking in warm water with laundry detergent and all-purpose cleaner….