When you get into your car in the morning, it's likely you'll be wearing cosy items such as a hat or scarf to protect yourself against the icy temperatures.
And when your car has sufficiently warmed up, you might think nothing of throwing them on to the dashboard before setting off.
But as well as the actual snow or ice on the windscreen that can obstruct your view, the same goes for anything that's lying on the dashboard. If you're caught, you could be deemed to be driving dangerously - and could be hit with a fine.