I've read that Zaino can/should be used on all non-porous surfaces (like windows and chrome trim). I would like to use Zaino on windows, chrome, and stainless trim -- just want to make sure it's a good idea. Also, I will be prepping with IP and FPII before the Zaino -- is it also good to use IP & FPII on the windows and chrome/stainless? My guess is that IP & FPII are milder than glass or metal polish and therefore should be fine, but I would like confirmation/correction on all of this.