I've read on other posts a few comments on freezing up on the inside of the windows.
To state the obvious, this is frozen condensation.
To cure it, get rid of the warm moisture laden air before locking up.
You can turn your heater to cold on full fan to blow it out when you're about 1/4 mile from home, but your passengers will moan about the cold.
Or when you've parked up, open all the doors for a couple of minutes.
The warm air in either case is then replaced with the icy cold stuff which doesn't hold much moisture, is colder than your windows and won't condense.
The other problem is steaming up when the sun gets on it and all the moisture in your soft furnishings is attracted to the warmer air which has the capacity to hold it and then dump it on the colder windows.
You can limit this by leaving your windows cracked open 1/4 inch or so to let the hotter air which is rising escape.













