On my drive to work today (and the last few days) there have been clear blue skies. This is nice apart from one hilly section where the sun is low and in such a position that it is right in your eyes. Now I will make it clear here and now that I am all for careful driving and driving with the sun in your eyes should cause you to slow down. What has amazed me while driving in is the lack of use on the sun visor that people have in their car. It makes such a difference to vision and is there for a reason other than checking you look ok or doing onces make up!