Have regrets. They are fuel. On the page they flare into desire.
Have more than one idea on the go at any one time. If it's a choice between writing a book and doing nothing I will always choose the latter. It's only if I have an idea for two books that I choose one rather than the other. I always have to feel that I'm bunking off from something.
I always like to be in the presence of people who are good at and love their jobs, Irrespective of their jobs.