So here are a few pages from my little sketch book that I carry with me most of the time. I was really obsessed with magpies for a while (total understatement) and drew one every time I passed a lone one... (there are a few more pages like that).
The other thing I started doing was to draw people on the Tube, I have this tendency of being like a five year old that stares at people when I am bored, although I am more subtle these days. It almost became a mini-challenge doing these scribbles really quickly so they never noticed. Don't worry I usually cycle, so hopefully you wont be my prey any time soon.