I finally have to realize I have a mild form of ADHD - while I was growing up I had to have at least 2 things happening at once. My mother always said I was a true Gemini. Sewing is the same way - I have at least 2 projects going at once, usually 3 or 4. And if they are all put away then them may never get finished. (Out of sight - out of mind).
My friend and I meet up for a quilting retreat in Las Vegas - just the 2 of us. We bring projects to work on, we have a the-share unit and we are there 5 -6 days, and never put anything away. It's a lot of fun.