Pick two topics and brainstorm about them! If you don’t have 3 x 5 cards on hand, just cut up a piece of paper into smaller pieces, or you could even just list the subcategories into groups on paper after brainstorming them.
If you don’t know me, you probably don’t know how my train of thought goes. And even if you do know me, you probably don’t know how my train of thought goes. Here’s how it goes: I think of something. Then, I think of other things that are related to it. Then I think of things that are related to the things that are related to the original thing. And further and further. And for some reason, my train of thought relates everything to Doctor Who. Yeah. Here’s part of my thought-train:
Books, blogs, role-playing, move and television scripts, poems, and short stories.
Types of technology, how it has impacted us, how different types of technology are made, different uses of technology, how technology will improve.