Three areas — each with outsized impact.

1. Sleep

Non-negotiable. 7-8 hours. Every other productivity intervention is diminished without it.

2. Morning routine

First 2-3 hours determine the rest of the day. Protect them from email, meetings, and phone.

3. Calendar

Calendar hygiene reveals your actual priorities. Audit once per quarter — delete recurring meetings without value; block focus time as meetings.

Three areas. Optimise each for two months; output doubles without more hours.