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

Companies leverage two basic pulleys of human behavior to increase the likelihood of an action occuring: the ease of performing an action and the psychological motivation to do it.

Users who continually find value in a product are more likely to tell their friends about it.

Habit-forming products often start as nice-to-haves, but once the habit is formed, they become must-haves.

Many innovations fail because consumers irrationally overvalue the old while companies irrationally overvalue the new.

Habit-forming products alleviate users' pain by relieving a pronounced itch.

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