I just removed my tint, so this will hlep alot. As far as cleaning them, ammonia works best for getting off most of the glue/adhesive, but it wont remove every last trace of it. What I used to get the last bit off, was an old clay bar. That thing just sucked the adhesive right off the windows. Works amazing, I just wouldn't use it near the defrosters. As far as regular window cleaning, I use stoners invisible glass in the squirt bottle. Works awesome, and then I use RainX on all the exterior glass. Clay bar works really well for cleaning windows regularly as well. Removes every trace of crap on them.

 

What is clay bar?