You'll often find that people's declared preferences - what they say they want - are far different from their revealed preferences - what they actually do.

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

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

User habits are a competitive advantage. Products that change customer routines are less susceptible to attacks from other companies.

The ultimate goal of a habit-forming product is to solve the user's pain by creating an association so that the user identifies the company's product or service as the source of relief.

If users are not doing what the designer intended (when users are investing time, effort, etc in your product), the designer may be asking them to do too much.

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