Proactively scheduling future activities creates happiness by providing a sense of anticipation.

“I can see how even just being proactive about putting things in your calendar out in the future to look forward to is a way to hack happiness in your life now”

Adding variety and novelty to one's life is essential for overcoming habituation and maintaining happiness.

“the message of like variety and Novelty is important for our life in general so people who have a more diverse life they've maybe um lived in different places they work in different types of projects they interact with different type of people um they tend to have a more psychologically rich life”