I love Anne Lamott's writing on, well, writing (Bird by Bird), and so I found this essay by Maria Popova, commenting on Lamott's writing about routine and ritual, really resonated with me as a creature of routine myself.
Marking it down here so that I remember both to come back to it, and to try to track down the Lamott book mentioned...
The Difference Between Routine and Ritual: How to Master the Balancing Act of Controlling Chaos and Finding Magic in the Mundane