Progress motivates action

Progress motivates action. It's not just the reward; it's the feeling of progress that drives commitment.

Two groups of customers were given punch cards awarding a free car wash once the cards were fully punched. One group was given a blank punch card with eight squares; the other was given a punch card with ten squares that came with two free punches. Both groups still had to purchase eight car washes to receive a free wash; however, the second group of customers - those that were given two free punches - had a staggering 82 percent higher completion rate.

Hooked: How to Build Habit-Forming Products