One of the toughest parts of creating work is defeating resistance (or overcoming the lizard-brain) to get started. It’s inevitable that getting started will be difficult — however, you can minimize the time and energy spent on this difficulty by stopping in the middle of a thought or sentence and leaving it to be complete the next day.
Journalist and author Cory Doctorow advocates the benefits of leaving yourself a sharp edge in this 2009 essay:
When you hit your daily word-goal, stop. Stop even if you’re in the middle of a sentence. Especially if you’re in the middle of a sentence. That way, when you sit down at the keyboard the next day, your first five or ten words are already ordained, so that you get a little push before you begin your work. Knitters leave a bit of yarn sticking out of the day’s knitting so they know where to pick up the next day — they call it the “hint.” Potters leave a rough edge on the wet clay before they wrap it in plastic for the night — it’s hard to build on a smooth edge.