This time of year its been abnormally warm and with the snow melting the humidity is really high. I don't typically let my car warm up much at all before heading out, and this leads to easily fogged up windows. Also, my trips are normally pretty short, so I don't have a ton of heat to blast to get rid of it. I've been thinking about trying out Rain-X Anti Fog on my windows. Has anyone else tried it? How has it worked out for you guys?