Tuna

Just as I had made this sandwich and before I had time to have a bite, my son rang to say he was coming round & did I want anything from the fish & chip shop. I declined his offer & spared my arteries more work.
I suspect that he is coming round to talk about him moving back home so that he and his girlfriend can save up to buy a house. Wine o'clock may be very early today!

I seem to have a couple of marks on my lens - any ideas how I might remove them? I have tried rubbing with a tissue, but no luck