A writing prompt is just what it sounds like. The point of these exercises is to not only get a writer, well, writing, but also to expand their thinking. For this reason, I would suggest you pick one that is out of the normal range of experience. I'm going to post a new writing prompt every day. While you don't need to share your take on the prompt with me, I would be interested to know how you managed to adapt it and make it your own. Just keep writing. Prompt # 1