This document provides 21 tips for improving productivity, including starting your day by revisiting your goals, taking breaks every 90 minutes, doing difficult tasks first, separating vital from trivial tasks, being a contrarian to avoid crowds, celebrating any progress, and using waiting time effectively. The tips encourage taking action, focusing on your best work in the mornings, getting tasks right the first time, being aware of how time is spent, and saying no sometimes to maintain focus and meaningfulness. The overall message is that implementing simple changes can significantly boost productivity.