JOkeR and
jimbonzzz -
Have you guys tried the various silicone-impregnated windshield wipers?
I'm hooked on the PIAA SuperSilicone, but I'd well imagine that the others would do the same job.
It literally self-renews/re-applies the silicone "wax," with each stroke. And since both halves of the equation is silicone impregnated, there's no chatter.
I replace my SuperSilicones about once a year, but if you live in a more temperate area, I'd well say that they can easily go for two years.
Pricey, but worth every penny when it's nasty out.
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I also make the a sacrifice when it comes to windshield wiper solution ( although I really don't know why, as I'm well capable to mix it myself

), I really like the
RainX winter solution, which very, very quickly melts ice - but leaves a residue on the surrounding glasswork and paint (which doesn't harm the paint, it's just that it doesn't look all that great).
I've sworn by it ever since getting caught in an ice-storm on the PA-Turnpike back in '98. I'm still convinced that, aside from my tires and general car-care, it's one of the reasons why I was able to make it to my destination, on that particular very, very nasty and accident-chocked day.