For many years I have been using BF Instant Detailer (used to be Midnight Sun Instant Detailer) as I dry my cars. Creates nice lubricity and removes water spots that inevitably start to form as I am working my way around the car. I don't see it available any longer on Autogeek/Autopia/Amazon. I have a bit left, but I am wondering what others use for drying aids as I will need to make a switch?