It can happen to anyone. You are driving along and a car in front flicks up a few stones, one of which hits your windscreen, resulting in the glass being chipped.
You then hit a substantial pothole and this chip becomes a crack.
This, along with dirt, mud, grime and other nasties, can take its toll on your car windows, leaving you at best with blurred vision, or at worst, having to replace the window itself. To prevent this, it pays to keep a close eye on the state of your windows.
AA Autoglass spokesman Jamie Gilliland says it is often something most motorists forget to check.