i wash the towels like regular laundry, in the past i have used dryer sheets, but stopped using them recently thanks to tips here at DC. the most recent time the spotting happened was after i stopped using dryer sheets. i do wash the rags, towels, applicators, etc. all together in the same load. when i polish, i think its shaken. the cars looks clean and shiny after i finish polishing. the spots dont occur until after i wax. thanks for all of the suggestions, i will give them a try and see if the problem stops