none.
I always have a dozen or so projects in various stages of completion- just like as a child in school needing to work on Math, English, Science, art, gym....I was taught at a young age to juggle many activities. through out my day I spend time doing a vast array of things- never just one thing. even cooking dinner- I may have food on the stove, be unloading the dish washer- putting clothes from the washer to the dryer, going through the mail, stitching blocks...you never know. if I had to do one thing at a time I don't think I would ever get anything done.!