I'll sometimes fall into a trap. I'll be sitting at a table outside a convenience store, or at the park, or at the lobby of the gym, and I'll say, "Ah, I want to work, but I've really got to go somewhere better before I do."
So I get up, go to a cafe... but maybe on the way, I'm a little hungry, so I'll stop and get some food first. Of course, the restaurant isn't an exactly perfect place to work, so I eat somewhat quickly, and then get up and go to the cafe.
And then there's no power outlets in the cafe, so I go somewhere else, and now it's like an hour or two later after I decided to work.
You'll see extremely prolific people do one of two things. Either --
1. Set up ironclad routines that they don't deviate from, and that have almost no ambiguity. So they wake up, do the same routine, and work at their desk. The desk environment is good, and they just jam right away, every day.