I keep going back to the same places and tend to stay there for quite a while (at least a month) so it's not a big problem if my first few days aren't as productive. If I were hopping from one place to the other, I'm not sure I'd be able to work as consistently as I'd feel bad for not experiencing my new surroundings.

I also think over time it becomes easier to just sit down and do the work. Motivation used to play a bigger role in my life, but nowadays I can just mostly go sit somewhere and start. Even in the rare cases I don't feel like working, I know that if I start anyway I'll be back in the zone pretty soon regardless.

I think it comes down to learning to ignore the lack of motivation and start anyway. The same way it's best to just go to the gym even if some days you don't feel like it. Once you're exercising it's usually alright. Same with work.