Stone Soup[1] Optimization:
0) 💡 think of Great Idea™ to optimize something
1) ⌨️ refactor code and implement Great Idea™
2) ⏱️ measure and confirm that it is Good
3) 😎 bask in radiant glow of your magnificence
4) ↩️ revert Great Idea™
5) ⏱️ measure and confirm that it is still Good and that the only improvement came from the refactoring
6) 🏕️ go live in a yurt far far away from electricity or computers