I was driving back from Scotland yesterday in heavy rain, wondering whether to go straight home or stop off somewhere to do some Christmas shopping. As I drove down the M6 south of Penrith, the sky looked a bit brighter over to the south west…so I took a quick detour off the motorway at Shap and made my way over towards Ambleside. With no particular aim in mind (and shopping still on the cards), there looked like a tantalising bright area in the clouds, so I decided to carry on through Ambleside and take the road through Langdale. At this point the clouds joined up again and it started to…