I've tried most of the rain repellants. RainX is in the middle, but the best (and by far the most expensive) is still STP VisionBlade. Accuvision wore out the fastest for me. I threw my bottle away.
Visionblade lasts many months, not weeks. I put some on the PREVIOUS spring and it's still working for me, through a whole winter. Most of the other ones will wear out partway through the winter
(Message edited by rayt on April 04, 2005)