My windows are "different"

I get occasional questions about cleaning non-standard windows like:
- Historic glass (wavy and brittle).
- Low E windows (are filled with Argon or Krypton gas and have a coating which can be damaged by normal window cleaning solutions).
- Windows with a film tint to block the sun.
- Stained Glass (ok, I can't recall if I have been asked this one or if I bring this one up, but I have cleaned historic stained glass)

I welcome your questions about any "different" windows you have. I will not claim to know the answers to every window question, but I have several resources locally that have helped me with my questions in the past.