This excellent book will introduce you to 2 invigorating concepts:
Morning Pages, where you write without stopping for 3 pages first thing each day (kind of the like Peter Elbow's freewrite); and the Artist's Date - where you take your inner artist on a fun excursion. Julia Cameron also introduces a somewhat radical idea - that humans were born to create, and that when they do they please God, the ultimate creator. The fire and brimstone types won't like that a bit.