So I've accumulated a nice bucket full of nasty grease filled rags from cleaning my drive train. Typically, I just toss them when they have no more usable area on them. Most of them are old bath towels, socks with holes in them, etc. I've been afraid of washing them, fearing that the grease residue would get stuck to the side of the washer or dryer, and ruin the next few loads of laundry. Anyone have any experience with washing these things? Or should I just go to "X" big box hardware store and get one of those massive boxes of disposable blue shop towels?