Clean the Clutter
I think as artists, we all ideally would like to start a new project with a clean slate, whether that be a blank canvas, a fresh roll of film, or a clean work table. When I'm in creative mode, I tend to have a lot of ideas flowing at the same time, some of which I'll leave and come back to later. As a result, content builds up over time, as I layer idea on top of idea. If I had a worktable one mile long, I know I would fill it just because it's there! I can sense when the clutter gets too great and starts to stifle my creativity. I know then it's time to clear the messy work table, reboot and get started once again.