I recommend these solutions:

A: Maybe it’s your glass cleaner.  Most cleaners are nothing more than colored vinegar or ammonia and water.  Although that’s an old method of cleaning windows and mirrors, our Gel Mist window cleaner will amaze you.

First off there is no ammonia or vinegar, and because it’s a gel, it sticks to your vertical glass so it’s easier to apply and use.   The best part is that Gel Mist puts an invisible barrier on the glass that makes it less likely to fog up.