Winter Sun

Improve vision by making sure that the windscreen is clean both inside and out. Scratches, abrasion and chips on the outside can also worsen the dazzling effect of the sun.
Greasy smears on the screen that don’t go with use of a normal screen wash additive will require a little elbow grease. Try using a cream glass polish with a slight abrasive action. If that doesn’t work then try dishwasher powder dissolved in a little water – Use clean kitchen paper to clean a small area at a time and try not to go back over a patch you’ve just done.
Use air conditioning for faster demisting and to reduce condensation on cold windows.
Check windscreen wipers and replace if necessary.
Make sure that wipers are switched off in the park position when leaving the car, when there’s risk of freezing. If you don’t and the blades freeze to the screen, you could damage the blades or wiper motor when you turn the ignition on.
Top up Windscreen washer fluid and treat with a suitable additive to reduce the chance of freezing. Don’t use ordinary engine antifreeze as it will damage paintwork.
Visibility
Make sure that all bulbs are working and that lenses are clean. When roads are really mucky you might need to clean lights after every journey. Keep the number plates clean too, as you can be fined if they are dirty and illegible.