Plan ahead. Since the unconscious mind is extremely cue-driven, we can use the conscious mind to stack the deck in our favor. Keeping healthy snacks in the car or at your desk, for example, may encourage you to grab those when you're hungry.
Disrupt established patterns. Changing the sequence of actions in a daily habit can change the habit. One of Neal's older studies showed that this can be as simple as switching the hand with which you eat from the dominant hand to the nondominant one.