Here's a new thing: a theologically meaty daily devotional that covers the whole Bible in 365 daily readings; starting mid-year (at Pentecost), it focuses in particular on what we can learn of the Holy Spirit.
UPDATE: By the same author, a prequel/sequel. Highly recommended for those who have worked through similar devotionals (Chambers, Tozer, et al.) and are ready for a rigorous trek through the Bible. [NB: As far as I know, the author is no relation to Sarah Young of Jesus Calling.]