I ordered ZAP from Amazon and recd the below. No matter, I guess. Rinsed it out under warm water, squeezed out excess water, cleaned interior glass.
Been 2 days now, sun glaring off/shining in different angles, different times of day and can see no streaks.
Dunno what this voodoo is, but it seems to work. Very easy to use as they are very thin so gets to/around corners and edges quickly and easily. Says they are washable and reusable. Very interesting and seemingly effective so far.
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