I have separate lists titled by characters in which I list each scene concerning that character consecutively and also the proposed scenes for that character along with notes of how I want to write it. So I take these and by them map out ahead the final draft, interlacing the scenes between various characters. Wonderful, isn't it? If I fail as a writer, I can always become a bookkeeper.
I have always been bothered because I couldn't remember details of time, place, etc. and I used to find myself either surrounded by reams of written pages, or else rewriting the same thing three or four times. This helps somewhat to alleviate that.

Letter to Maxwell Perkins (21 October 1946); p. 78 - To Reach Eternity (1989)