How do you guys keep your glasses clean?

[TonyG35]

I tend to fog more in the winter...

Cat Crap - no not that kind - this kind:

http://catcrap.com.au/home

+1 Cat Crap in my opinion is the best anti-fog and a good cleaner as well. I ride snowmobiles with glasses which is probably one of the most difficult sports for wearing glasses. Cat Crap is not perfect but the best I have found and I have tried many. The only down side is it's not quick to apply like wipes so just remember to use it the day before you shoot.

[Interceptor]

I've had problems with fogging at the last two nationals in Tulsa, particularily at the morning stages. I went to the vendor tent at both nationals and bought a bottle of Kleer Vu Anti-Fog Cleaner. It cleans very well and was very effective at keeping the fog off my lenses.

http://www.kleervu.com/