Drivers are being urged to avoid a common frost-clearing hack that could result in drivers scratching their windscreens and potentially even failing their MOT test. Motorists across the country are waking up every morning to see their windscreens and mirrors covered in condensation, frost, ice and even snow. While the Met Office has not issued any yellow, amber or red weather warnings, experts are instructing drivers to prepare for low temperatures and potentially even snow. Parts of Scotland and Wales have been battered by temperatures below freezing, strong winds and strong snowfall, causing…