I'm reading a book right now by Peter Walsh (of Clean Sweep fame) called: "Enough Already - Clearing Mental Clutter to Become the Best You". I'm only in the early stages of it, but I'm already liking it alot! What I'm reading resonates with me in the RTS world as well... What he calls mental clutter, I would call incompletions. Things that hang around our space and clutter up our emotional, spiritual, mental, intellectual space. There's a lot to be said for decluttering in the physical world... but clearly, there is a lot to be done in the mental world as well!
While we... and others... can see physical clutter, mental clutter is more insidious because nobody can see it. We know it's there though... Part of it is learning to become aware of it... and once you're aware of it... to let it go and get rid of it. Mind you, given how hard it is to let go of physical clutter... I imagine letting go of mental clutter is even more challenging! And I'm thinking, it has a habit of crawling back into our lives if we're not vigilant!