I usually jot down important details in my phone's notepad as quickly as possible, especially quotes I can remember because they're few and far between and easily forgotten for me. Takes about 5 minutes for a dream or two depending on how detailed they were. Then whenever I have time I'll write up a full report on my computer or touchpad. Sometimes I'll wake up between dreams and put them in the phone, it really helps if you can do that and still get back to sleep.

I won't use the recorder mostly because I hate hearing my own voice, but if it works