Fogg states that all humans are motivated to seek pleasure and avoid pain; to seek hope and avoid fear; and finally, to seek social acceptance and avoid rejection

As fleeting commitments, diets often fail. Thinking of dietary choices as part of who you are...can give them real staying power

Like flossing, frequent engagement with a product, especially over a short period of time, increases the likelihood of forming new routines.

Products with higher user engagement have the potential to grow faster than their rivals.

When designers intentionally trick users into inviting friends or blasting a message to their social networks, they may see some initial growth, but it comes at the expense of users' goodwill and trust. When people discover they've been duped, they vent their frustration and stop using the product.

Instead of relying on expensive marketing, habit-forming companies link their services to the users' daily routines and emotions.

Brainstorm new interfaces that could introduce opportunities or threats to your business.