Managing water effectively requires keeping track of how much water is available for use and how much is being used. This can be done through a water budget, which is like a bank account for water. While global water resources may seem abundant, it's important to focus on local water flows to understand water stress. Water is continuously replenished on a sustainable basis, with watersheds playing a key role in capturing and distributing water. By looking at the water budgets of individual countries like Myanmar and Egypt, we can better understand water availability and usage.