Wow, that sounds amazing. I'm not blocked at the moment - luckily! - but I might just try it nonetheless. Thanks a lot for sharing this wonderful tip! Oh, the possibilities...
I think it'll work for canon characters too. Simply because when you brainstorm these words, you already know what you're going to need them for. Yes, I know you're writing down the very first thing that springs to mind, but still, your subconscience will be biased. Just my theory... we'll see if it works.