I don't think writers should wait for inspiration to write. If so, we're just asking for trouble. What happens when nothing's flowing? It could be weeks before inspiration hits. Doing it that way is just asking for writer's block. Instead, I have my "muse on demand." Every day I write something. It's like a muscle that has to be stretched regularly or it atrophies. As long as I sit my butt down at the computer and write daily, my muse happily pays me a visit.