I thought the video that PaulB posted was inspiring, and it reminded me to get stuck in on my guitar - I have 2 working hands and therefore 0 excuses not to play.
The best thing I have seen (so far) today was a rainbow. Not just any old rainbow though - it was the most local rainbow that I have ever seen! I was walking down a backstreet in Todmorden and looked up. I saw a rainbow coming down to ground between me and a hillside 300 metres away - literally just round the corner. I thought I might actually spot 'the crock of gold' so I ran to the end of the road but the rainbow faded away before I could get my phone out and take a picture of it. Still, it was an impressive sight!