This happens when I feel really relaxed, while walking or laying in the park or taking a bath. I'm not that picky about where I do the actual writing. I like to write most about people I admire. Fortunately, there are thousands of amazing people in the world. I take copious notes of children at play and I develop character sketches that might one day serve as the basis for a book.
People are a big inspiration.
You are my friend, I want to paint you. I work in my office at school because I have my computer there. Once I start writing, it doesn't matter what physical place I'm in. It's important, I think, to write at least a little every day. You slog and fumble and when you least expect it, something dazzles.