I'm reading a terrific book -- "When: The Scientific Secrets of Perfect Timing"[1] -- that reviews the literature on this exact topic. Recommended.
The aforementioned book in combination with "The art of not giving a f..." by Mark Mason, and the "The 4-Hour Workweek" by Timothy Ferris made me change my working habits to the better/more productive.
I now spend more time on journaling on my ideas/results, and find myself being more focused. I guess that journaling is "some kind of writing" (I am not a writer), but it helps that when I write and immediately read something (a paragraph, numbers, rough pen-and-paper diagrams,bell-shaped-curves/sweet spots).
I suggested the "What the Most Successful People Do Before Breakfast" book to (former) fellow night-owls to switch their 10pm-2am routine to a 6am-10am. Most who actually tried it are enjoying the benefits. I do understand that this depends also on other factors (health, workouts, driving kids to school, daily commute, walking the dog, morning workouts) but a balance can be achieved so that one can fit a 3-hour-work without impacting other functions.
https://urlex.org/ can expand these for you.
a.co links always go to some illegible Amazon URL, so I think it’s fine to use them.
1. You can see it is Amazon
2. If you click it and are expecting "product A" and instead you see "product xxx" you probably won't proceed further.
3. This is Amazons fault, not those that have posted short URL's. There simple is't a longer URL that says: http:// amazon.com/this-is-the-product-you-were-after-just-in-case-you-are-skeptical-of-a-short-url-given-to-you-byu-someone-you-dont-know-beware-danger-will-robinson.
Example: https://www.amazon.com/LG-Electronics-70UK6570PUB-70-Inch-Ul...
Slainte