Great book!
One interesting thing I got from it was about changing my environment. I was working from home and had my personal computer and work laptop on opposite sides of the desk. Taking advice from the book, I placed the comfy chair by my workplace and moved the not-so-comfy chair by my personal computer.
Increased my productivity by at least 50%. 

 Yes, yes, yes!!!! 👏👏👏I took that to the extreme and left my country for one which is less toxic and dystopian 😂 Environment matters!