A simple enough phrase and the title of an Asian Dub Foundation track, but one with a lot of possibility buried in it.
I first came across it in a book on the systems Chefs and cooks use to organise themselves in professional kitchens (Work Clean, by Dan Charnas). The point was that preparation for the next days service began the previous day, with sourcing the ingredients, preparing what was possible to do, cleaning and planning ahead.
It occurred to me that we could all apply this principle to many other areas of life, not just cooking, to reduce stress.
From getting our clothes for the next day ready before we turn in, to buying a train ticket the day before we travel, that little amount of prep can pay big dividends.
And of course, it is hugely apt when it comes to personal training and life changes. Not eating that second chocolate biscuit makes tomorrows workout more effective, 5 minutes of mobility work stacks to huge changes over time.
So begin today what you want to achieve tomorrow.