I keep a guitar around while writing and will improvise music. I do this for several reasons, such as that it's fun, and sometimes it helps me with the meter.
My reading is extremely eclectic. Lately I've been teaching myself computer graphics, so I'm reading a lot about that. I read books of trivia, of facts.
I'm working now on a collection of Shakespearean sonnets, about 100 of them, that I may publish if anyone's interested. My take on life is a little different from the bard's.
There's not too much difference between writing a picture book and writing a collection of a hundred poems or so, except that the bigger books take a lot longer to do.
Poetry seems to sink into us the way prose doesn't. I can still quote verses I learned when I was very young, but I have trouble remembering one line of a novel I just finished reading.
I've been influenced by poets as diverse as Dylan Thomas, Lewis Carroll, and Edgar Allan Poe.