For those who have had their windows professionally tinted, what kind of window cleaning product you use? The shop has suggested me ammonia-free product such as Bon Ami.. but I still think this might be too abrasive?

Also, the XC had its share of road salt this winter (and it's not over yet) and although having the Volvo OEM rubber mats and being careful as much as possible, some of that calcium found its way on the carpet around the egde of the floor mats. It also didn't take long for the salt to harden on the carpet making it a pain to remove. Would there be a product out there as well to help me remove that white gunk?

Thanks!