Anybody out there try this? Take a very dirty window, complete with old paint flecks, bird dwadle, and hard water marks.
Then, using an ammonia based cleaner, first spray the glass then use 0000 steel wool in circular motions until it slips easily. This dries to a white haze that wipes off easily.
Now if I could just get the corner scratches out left by the previous owner or builder. He must have used a piece of sandpaper to remove over-applied stucco!