good subject... weird names!
I do not wear glasses for visual correction but do take eye protection extremely seriously, so always wear protection on the road, sunny or not.
I tried a product called "spit"

which I found on Amazon
Thanks for the informative, near exhaustive post from Jim - one question, have you tried that catcrap stuff mentioned by Stealthammer?
My problem with the Spit thing was you have to remove a lot to prevent the smear factor and it seems very hard to get that right (most is removed and misting recurrs), so I seldom try to use it now... Curious if catcrap is better in that respect?