oh... i just found that tip:
i copied/pasted it here:
(courtesy of vette2viper)
Guys...try this to protect tinted side windows:
1. Spray a horizontal strip about 4" high across the side window (about in the middle) of Pledge furniture polish.
2. Use a folded, soft cotton towel and wipe the window back and forth, covering the entire window.
3. Rotate towel and continue until NO Pledge is visible.
The BENEFIT:
1. Little if any scratching from window useage.
2. May improve up/down action of windows.
3. Will prevent future hazing of tint.
4. Almost eliminates window "fogging".
5. Cuts way down on window dirt, finger prints, etc.
This is usually done just ONE time and of course, if it is a new tint job, make sure it is completely cured.
Good luck...and enjoy.
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FYI - Regarding curing: Tint shop said not to open/close windows for 3 days. Once that time had passed, I used above tip...