Some days it will be closing X issues, or a cold beer, or a gaming session with a friend, or tracking down that one annoying bug, or seeing that my numbers are low and I need to up my game (which can conflict with long work to find that bug of course), or reading a book, going for a bike ride.
There are other ways I do it but no single thing hits the spot for every day and every situation. Having a stock of various methods works though and I'm always happy to add another.