It's nothing all that new or complicated, and not necessarily 100% effective. But it has helped me from forgetting entire dreams in a lucid chain, or even a nonlucid chain of dreams, as long as you wake up in between each one. Instead of waking yourself up too much by writing down something in a journal, I just remember a key word from each dream, and memorize it when I wake up in between each dream. Like if the first one was near the ocean, then the second one was about a hot blonde chick, then the 3rd was about puppies, then your key words are "Ocean, blonde chick, puppies." So all you have to do to spark the memory of each dream, is to remember each key word, and it helps if you link the words together to form a picture, ie: A blonde chick holding puppies by the ocean. Something like that. And you make yourself reinforce the keywords into your memory in between each dream so that you remember them when you wake up for good that morning. It has worked for me alot in the past. Including when I had to cram for tests in college

Bookmarks