1. When possible, do just one thing at a time.

  2. Pay full attention to what you are doing.

  3. When the mind wanders from what you are doing, bring it back.

  4. Repeat step number three several billion times.

  5. Investigate your distractions.

Meditation Teacher Larry Rosenberg, p222 The Mindful Way Through Depression: Freeing Yourself from Chronic Unhappiness (includes Guided Meditation Practices CD)

This sums up mindfulness in its total simplicity and acts as a perfect constant reminder.