A lot of artists work in a studio–I work at my computer desk. I used to have a studio space in the basement and in the garage when I was using oils but nowadays I am working with watercolors and find that working at my desk with a photo on the monitor does the trick. I also carry a small watercolor tablet with me so I can do my doodles when I am out. Usually I don’t paint it or ink it until I get home though I try to keep my ink pen and a small case of watercolors with me, just in case.
The kids often sit on the floor nearby while I am working, working on their own watercolors or in work books. They also run in constantly showing me their latest projects. (Shamus’ desk is behind mine, across the room. Poor guy gets to deal with our constant interruptions while he is trying to concentrate.)