I find the Tiny Habits email program to be very effective. I used it multiple times to establish flossing as a habit, and I'm going to use it again to try and implement brushing and walking in my day.
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"I danced in the morning when the world was begun. I danced in the moon and the stars and the sun". From my favourite hymn.
"If you see the wonder in a fairy tale, you can take the future even if you fail." Abba