Photowalking, my favorite form of doing photography. I believe that the term was coined by Scott Kilby. Photowalking is the act of walking with a camera for the main purpose of taking pictures of things that the photographer may find interesting. While related to street photography, photowalking is differentiated by its impetus to photograph things of interest rather than people specifically.
I do a lot of this and not always in the city.
I'll start out with an idea of what I want to shoot, but will often stop and photograph things along the way which catch my attention. I guess it is part of my A D D. I find that my A D D comes in rather handy for finding items to photograph. Of course it may take me a while to get where I was originally headed, but I generally make it there, eventually. I also manage to have a lot of fun along the way and often come back with some rather nice photographs.