Depends on the dream. My favorite is stepping on a sidewalk
   block in my childhood town and all the surrounding sidewalk
   blocks fall into nothingness while I rise above and fly around
   town. The kids that made fun of me would see me and be
   impressed, changing their opinions of me. [probably a middle
   school dream there]. I practiced lucid dreaming as a teenage
   from some book - I think Sun Signs or something like that - and
   learned it - not hard to learn and being able to influence my
   dreams or at least be aware of them from an observer pov at the
   same time as the participant was a huge difference in the
   fun-ness of dreams. == Nothing official. But I always have a pen
   and 3x5" notepad with me at all times, since I was a teenager.
   I'm 43 now and I have a few hundred of those little notebooks.
   Some phases I'd use index cards. Lots of times i'd use the
   computer, Palm Pilot, smartphone, whatever I had on hand. So, I
   didn't treat dreams any differently than shopping lists: if I
   was interested and I wanted to keep it, I'd write it down before
   I forgot it. very useful habit to acquire. ==