The document outlines how an individual could reduce their daily water usage of 166.1 liters. It breaks down their current water usage into categories like washing, drinking, personal hygiene and identifies areas to cut down like fixing dripping taps, taking shorter showers, and hand washing clothes instead of using the washing machine. Implementing several changes such as using cups instead of mugs and taking showers instead of baths could reduce average daily water usage to 100.35 liters and help conserve water.