Do you often get windshield fog?
In the morning, especially early, when you want to leave for work and you're late?
There is a trick that drastically eliminates fogging.
Rub your windshield with dry soap... and it also works with 90° alcohol! Yes, yes, look:
1. Take dry soap.
2. Rub the windshield with it.
There you go, no more fog on the windshield! The car windshield remains clear and transparent :-)
It's still more practical to drive, isn't it;-)
You can also replace the dry soap with 90° alcohol. It's just as effective.