Total Devotion: 365 Days of Spending Time with Jesus
Designed for youth, this devotional book offers 365 numbered but non-dated devotions. (That way you don't feel behind and give up when you miss a few days; you just go on to the next day.) Each devotion offers a brief and relatable experience (classmate gets hurt in gym class, social politics of the school lunchroom, sexual harassment, being bored, etc), followed by a Bible passage to read (it's not printed), and them a brief teaching moment that draws the two together.
Each devotion is one page and only takes a few minutes... the perfect balance between "I'm too busy to do that " and "I'm learning how to make time for God in my life".