Rewarding the habit.
Eliminate the cue and your habit will never start.
Reduce the craving and you won’t experience enough motivation to act.
Make the behaviour difficult and you won’t be able to do it.
And if the reward fails to satisfy your desire, then you’ll have no reason to do it again in the future.
Without the first three steps, a behaviour will not occur.
Without all four, a behaviour will not be repeated.
~ James Clear, Atomic Habits
It's easier to say, "I should do that" for any habit.
But that mostly never leads to action.
Instead, when we understand the anatomy of habits, when we understand the importance of the cue (the trigger), the craving, the response and the reward, and when we complete the habit loop, we are able to be much more productive.
The most ignored part of this loop is the reward, especially when we are not in the habit of rewarding ourselves or celebrating our wins. A reward does not need to be a snack, it could be the satisfaction of ticking the habit in your to-do list or changing the colour of your calendar event.
But without the reward, a satisfying action following the response, the habit is much less likely to be repeated.