I often prefer to dream on instead of getting up to write down the last dream. So I'm using that technique and in addition I analyze it for dream signs it missed and things I could have done to become lucid. I write down the dreams later when I really decide to get up. One day I managed to memorize three dream periods after already being up for an hour having a coffee that way. Nevertheless, many of the fine details got lost and I couldn't recall some transitions clearly. But I think it's a good training for dream recall in addition.