Hi, My Car Fan/Heater failed over a year ago ( I cannot afford to have it fixed ) And now winters here again I'm really struggling to drive safely while constantly wiping the windscreen.. I've bought some large Silicon bags which I've put on my Dash, but they don't absorb much. My question is are there any Plug in - into cigarette lighter socket - Portable Fans that really work? There are loads of cheap ones on eBay, but I've read some reviews and apparently none of them generate enough Heat to make a difference? Does anyone reading this have one that they can recommend please?