Today, if you normally find that your stories come out one way, try to write a different way.
Write Against Your Normal Type
What I mean by this is simply: if your stories are usually sombre, try to force something flippant. If you normally go for comedy, try drama. If you write romance and happy endings, kill off a hero today. If you normally write paranormal stories, today try something rooted firmly in the real world.
It may not work, you may find that it feels awful, or you may discover that you’re much, much better at writing something other than what you THOUGHT you were meant to write.