Pay attention to what’s happening inside your car. Fog can cause condensation which builds up on windows, further obscuring your view. Turn on your windscreen and rear windscreen heaters to demist your windows. It can be a good idea to open your windows slightly too. Not only will this help with the condensation but it will allow you to hear what’s going on around you and will help fill in some of the pieces that your lack of visibility has taken away. For the same reason, we suggest you turn your radio off.