I think it depends on how you prefer to work. I have quilt friends who only work like you do. Start a project and finish before they consider the next. Myself I have lots of projects going. One will be at binding (which I do while watching TV with DH) One will be at design stage, one at cutting, etc. etc. There are always things that come up to interrupt the main project I am working on. Blocks for a club project, cheer blocks for quilt friends, the list goes on.