Remember back in elementary school when your teacher taught you how to plot a story using an idea web? You know, you put the main character or central plot point in a circle in the middle of the page, and then you draw lines off of it leading to other circles with related ideas in them?
I kind of still like to do that from time to time. It oils my brain. I don't always use everything I come up with, but that's the point of brainstorming, right? To free your mind more and more until the really good or unique ideas start to flow.
Try it. You might be surprised.
When was the last time you used an idea web?