The fan in my car is not working (the switch is bad), so I don't have heat in my car. Thank goodness it's only gotten as low as 18 here. As it is, I put a blanket over my lap and wear thick gloves when I'm driving to work. I also have been leaving an hour later giving the sun a chance to come up. I'm thankful that my boss understands and has no problem with me being an hour late.