At any rate, I still thought about preaching when I saw this snippet on Andrew Sullivan's blog about how we remember.
Briefly put, the human brain is manifestly better at remembering images and spaces than it is at recalling numbers and letters. Cicero, then, counsels, “The best way to memorize a speech” is to “make one image for each major topic” and “place each of those images at a locus.” You might not easily remember every topic you need to cover in a speech, but you will, in all likelihood, effortlessly recall the layout of your childhood house. The task, then, is simply to build the speech into that house.
I'm going to have to remember that for my next sermon. I do pretty well from notes, but this might be very useful for getting away from notes entirely.
What techniques do you find useful for remembering what you want to say?