A checklist is useful for situations where you need to replicate the same behaviors every time. It’s prescriptive; it stops people from making an error. On the other hand, a playlist is useful for situations where you need a stimulus, a way of producing new ideas. It’s generative; it stops people from overlooking an option. (Don’t forget to shine your spotlight over here …) Playlists also spur us to multitrack. In the last chapter, we discussed the value of shifting between the prevention and promotion mindsets. A playlist can force us to make that shift.