Go in search of some word, a thought or picture to give the brain an interlude. Transpire a flash of brilliance on paper after the eyes and grey matter are willing focus another subject.
Write a twist into a story. Play off words, not our own. It all moves the level of writing around in the mind. Producing poems, flash fiction and the next chapter.
Have fun with prompts you find and don't forget to share the story that comes from them.