Music, but if it has words they need to be foreign. J-rock, deadmau5, gogo penguin, carrion... All are good.
Dark themes everywhere unless it's java, because it helps me compartmentalise my languages.
Second screen hooked up with the stuff I want to be viewable all the time, as it doesn't change when I switch workspaces. (bug or a feauture?)
Door shut to muffle sounds from the rest of the house, window slightly open so I don't suffocate.
Pomodoro timer on, but put phone into silent mode so no notifications disrupt my focus.
Drinks and bathroom breaks happen in the 5 minutes between pomodoro sprints. Food happens in the 15 minute breaks.
Extra RAM stick is in the mail so I lose less time waiting for android studio to exhale or whatever it's doing as it holds up the whole computer.
I might just do the java parts of my project in bluej if this ram stick doesn't alleviate my problems. I could go outside and drink mud through a metre long straw with a filter on the end sooner than android studio gets unstuck.
If anyone can add more sensible ideas I'd be happy :)