Pretty good for maintenance, right? Of course when dealing with some serious/stubborn stuff that's when you pull out a dedicated product. The best in my arsenal is Scholl Concepts Ice Glass Cleaner Gel. Was really hopping to see it when the line was carried here on AG.
If you have some CG V7 & D114, try: 1 part D114 (from 1:128) with 1 part V7. Good stuff. Super slippery & leaves the glass very glossy. Mixture courtesy of fly07sti.
BTW, I've just now noticed you're in Vegas! Ha, no wonder you mentioned dealing with residue. With the crazy & dry tempt, no wonder your experience is a bit more colorful than others. AG should send you stuff to test out. If products do well there, it'd more than likely do well for out door detailers.