Great concepts Jari!
But I feel the examples don’t do justice to the habit stacking idea.
There is a difference between ‘practice’ and ‘habit'.
Going for a daily run maybe a habit, but a cold shower after is a ‘practice'.
Eating dinner is another one. Or going early to bed.
To add to the conversation, I consider habit pairing to be even better.
For eg: Listening to Podcasts on a walk/run
Listening to an audiobook while journaling