I watch some videos on productivity management on youtube, and one of my favorites is the Pomodoro technique. If you haven't heard of it, it's basically using a timer to say "I'm going to work on this for so long" then take a break, which is subsequently timed, and repeat. I think the model is 25 minutes working, 5 minute break, or whatever. I just felt like sharing.
Anyways, keep up the good work, Paul, and don't push yourself too hard. Just remember how to eat an elephant.
The pomodoro technique is good for work that you do at your desk if you are a certain type of personality that otherwise has trouble focusing on productive tasks at your desk (or don't take breaks often enough).
Unfortunately, it's not going to help me with my tasks that stretch all over the house... but it is using some of the same principles. Also, in creative pursuits, I find the "take a break now" cut-off better as a suggestion than a rule because if you are on a roll you definitely shouldn't stop. I spend a good deal of my waking life trying to find those double-productivity waves and I'm not going to interrupt it for anything short of a medical emergency (which unfortunately has happened all too often).
Thanks for the comments, though.
Today was a real test because I didn't want to do any of it... but I still managed to tick some time off of every box except (so far) my guitar practice which I'm about to do. No chains broken yet.