Later when I came back from Leeds, and started walking again in Oxford, I would keep the SLR in the small backpack that I carried around. With the point and shoot it was easy taking pictures and less distracting. And it was a pain to take out the SLR, I would make the effort only if something really caught up my fancy. This way I managed to see more.
Thinking that on my next trip, I would try to declare one day camera free! I know easier said than done, but I can hand over the camera to others and just enjoy the views.