I use denatured alcohol with 000 steel wool to clean glass. That's the only change I would suggest to LaughingGravy's method.

Denatured alcohol is used by the tint shops to clean everything, including old tint and adhesive, from windows. That with steel wool and razor blades.

Also make sure to either replace or clean the wiper blades. They are probably coated with whatever is making the film.

__________________
Chad
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"Pleasure in the job puts perfection in the work." - Aristotle (384-322 B.C.)

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