In Great Demo! Workshops we help teams identify the “wow” screens and deliverables in their software (“Illustrations”). One terrific approach is to leverage the well-known “before-and-after” approach, with the “before” imaging painting an agonizing picture of pain, and the “after” image showing the desired future state (presented with the sound of angels singing…!).
Here’s one fun image example for a “before” portion, describing a customer’s current process or workflow:
http://blueballfixed.ytmnd.com/
Enjoy! (Any others to suggest?)