Back when I was a captive instead of a freelancer, I wrote wherever I had to. Usually on the deck, but also in coffee shops, airplanes, hotel rooms. The fixed requirements were Wi-Fi and access to power. The upside to dictating your first draft is that you can do it anywhere. In this case, I did this 15 minutes of dictation while driving. The trip seemed like it happened in just a few minutes.
The Icebox: Session 2, driving
Dictation recording (15 min)