Clarity seems too expensive to be jetting into the air at 60 mph. If you need to be concerned about freezing then you could do what I do which is the cheep blue stuff with a 303 tablet thrown in. Summer - straight water with two 303 tablets. Here's a link 303 Instant Washer Tablets

 

Somebody posted in another thread that they use diluted Clarity as their washer fluid (can't remember who is was)

 

I have to second the suggestion of using Clarity on laptops. I did our two and then the big screen TV with the DP glass microfiber and it really did a nice job.

 

tootall- yah, this cleaner is very gentle yet has strong cleaning power.