The topic sentence idea is particularly valuable, and it's something I try to pass on to students. I also use latex macros to turn this on and off (and to put in margin notes, also). All of this advice was so similar to that I give my students that I went to the author's homepage here on HN, to see if it was somebody I had taught. (Nope, wrong field.)
I did something similar that was quite useful. I wrote a complete outline of my thesis, down to the paragraph level. Then I sat down with my advisor and went over it, before I did any writing. This had a couple useful effects. First, I knew he was in general agreement with my plan. Second, it acknowledged that I was in fact in the writing phase and wasn't doing any more experiments. A useful side effect is that whene…
For me, I started from the slides I had presented in my immediate group meetings (~6 ppl, including my advisor, typically once per week, 2-3 slides each) plus the larger group meetings (~40 ppl, including the lab director, typically twice per year, 20-30 slides each). That gave me bullet points and figures. I wrote one chapter at a time, starting with the central chapters & ending with the introduction & conclusion. I had a 6-month time table for writing, and I was only delayed 2 weeks in the end. Remaking figures and messing with LaTeX took more time than I wish it had.