I Can See Clearly Now

The stuff on the window panes refused to go quietly with a razor blade, so I did some research.  A professional window cleaner on the internet recommends using #0000 steel wool in cases like this.

Boy, does he know what he's talking about.

(That's not a crack you see in the window; it's the arched window resting with the rest of the windows that don't have cracks.  *sigh*)

Now I'll have to ask someone like him about the best way to safely clean stained glass windows.