I never quilt dreaming of my next quilt. I'm always eager to finish whatever I'm working on so I can get on to the next project.
I do have a little quirk about my quilting though, since I like to design my own quilts and do so without actual patterns. I have to "build " it in my mind, from beginning to end. My husband gets annoyed at me for not actually starting on a project when I keep telling him, "I'm working on it." You'd think he'd understand....