My windshield is fine except in the morning when the dew and sunshine
combine to make it impossible to see due to this naughty spotty on/off film
that I just can't windshield wipe off. Even the mirrors are spotty in the
morning. The rear and side windows are fine.

When I was driving the neighbor's fifteen year old to school yesterday
morning, he said it was the nasty rainx. What rainx? I bought the car used
about six months ago and I never used anything with rain x on the
windshield.

Is rain-x the culprit? If so, how do I save the windshield?
Is there a way to remove this rain x stuff so I can see again?