OK, this may be hard to believe but I'm just now having to add washer fluid to my car after 14,700 miles and 3 years.  I buy P21S and other "good" products to avoid doing anything bad to the paint, wheels, etc. on my car.
So, I was near a dealer a couple of weeks back and asked what they use as washer fluid and the parts guy totally surprizes me when he says "the blue stuff".  You know, the $0.99/gallon stuff!
Somehow this seems so, well, 
wrong to me.  I know P21S offers a 
Booster product but I've not been able to find a good basic washer fluid that doesn't have a skull and crossbones on it.
Whaddaya all use?  BTW, in my area anti-freeze capability is a 
must for the winter.