The way we learn is often the best indicator of the most productive way for performing our thinking. Learning happens through visual, kinesthetic/tactile and auditory means. Visual stimulation can enhance thinking. A change of scenery may be suitable for productive thinking. For kinesthetic processors, the act of writing or striking a keyboard (musical or word processing) allows their thinking to flow. Part of the population finds their thinking has to be orally expressed (silently or out loud) in its raw form before clarity is reached.
Take some time soon to think about how you think. It will be a productive use of your time.