I started this a few months ago and find that my TODO grows faster than it depletes. My TODO items are both professional items (i.e. implement feature x) and personal (i.e. fix bike chain). The list is items that will take some non-trivial effort.

I now find that when I have a moment to do something, I pick it off of the TODO list and complete it. Prior to this technique, I did not have a list of this nature and some items never got completed.

I feel incredibly productive with my current setup. However, I don't feel as though my previous system was unproductive and am concerned that I'm "spinning my wheels" by feeling like I need to complete these tasks that went unfinished before.

Have you experienced this? Do you know how to best think about what is optimal?