Dream Journaling is one of the most effective ways to increase your ability to remember your dreams. I recommend that you use a digital voice recorder to record your dreams. If you choose to write your dreams down, use a minimal light source to keep from waking yourself up too much, so that you do not have a hard time going back to sleep. It is suggested that you use a red pen light, as red light is the least activating light. This will also help prevent your from disturbing your sleep partner.