Productivity
Protocol66
66 days. 5 habits. Miss a day, start over.
A habit challenge built on the research, not the hype. Pick five habits, hold them for 66 days, and start over if you slip. The science-backed alternative to extreme fitness challenges, designed to make the habit stick after the challenge ends.
- Pick five habits from eight categories and check them off every day.
- Miss a day and the challenge starts over. Rest days and late logging are the only safety valves.
- Watch the 66-day grid fill in, crack open milestone rewards, and compete with friends on the leaderboard.