If you'd like to watch less television, try putting the remote away in a very inconvenient place and making yourself put it away every time you use it. If it's a big pain to turn on the TV and to change channels, you might find yourself drifting to other activities that will be more satisfying in the long run.
For notes related to books I'm writing, I've wondered whether I should organize my notes better, but I do find that the action or scrolling through them and seeing odd juxtapositions of ideas helps to stimulate my own ideas and creativity. I worry that if I kept the notes in a highly-structured way, I might lose some of these benefits.
Work done by other people sounds easy. How hard can it be to take care of a newborn who sleeps 20 hours a day? How hard can it be to keep track of your billable hours? To travel for one night for business? To get a 4-year-old ready for school? To return a few phone calls? To load the dishwasher? To fill out some forms?