Christians, what is your favorite devotional?

Obviously the Bible is the best of all, but you know what I mean. I know many that are good, but I'm curious as to what some of your favorites are. My recent one is Jesus Freaks by dc Talk and the Voice of the Martyrs. I'm always on the lookout for a new devo to help improve my walk with Christ. So please tell me. What's your favorite? If you're doing one now, which one are you doing and what is it about? I'm inherently curious :) God bless!