One of my bestf riends and I have used this in the past, open up iTunes of Winamp or something and make a playlist of the mood, theme or songs that you think signify the characters. Listen to it and just jot down your thoughts. Usually, after about an hour or so you have more than enough material to get you started again. It’s relaxing and inspirational. It takes some practice for most but in the end it’s well worth it.