Yar, what she said.

Also, you could just walk over to a DC (doesn't necessarily have to be a human being. Doesn't even have to be alive really, talking walls are probably fun) and ask it what you were gonna do again. You could also ask the DC what they would do if they were having a lucid dream.

Of course, in order for that to work, you'll have to remember to do it in your dream. Shouldn't be that hard anyway if you do what Justme recommended. Also, be sure not to convince yourself that you can't have any memory in your dreams. Know, and tell yourself, beforehand, that you can and will remember your intentions.