I work in three or more journals at a time. I know I've described my organic working method in the past. I never do a page from start to finish in a sitting. Instead I paint a little, throw the journal behind me and grab another one, paint or draw or stamp or collage a little, then throw that one behind...lather, rinse, repeat. I love working like this. It releases the pressure of having to finish something and just encourages play.
Here's a pic I took of my floor after a few hours of art-ing.