Defrost fully before your journey
We are often in a rush before our work journeys or school run, but is always prudent to ensure the best visibility. Before you drive, you must make sure your vehicle is properly defrosted. A trusted ice scraper and some spray-on substances that dissolve snow and ice from your screen are usually the quickest way.
Please do not only focus your attention on the front and rear windscreens, your side visibility and mirrors are also important to clear, as well as your front and rear lights and your indicators. Good to ensure those around you know where you are going!
If there is heavy snow, ensure you clear your roof, perhaps using a soft broom. This will ensure drivers behind, cyclist and even pedestrians aren't getting your roof top snow in their face.
Also at this time of year, make sure your screenwash is filled and diluted suitably to clear any ice forming whilst you drive.