This document discusses strengthening country processes to improve aid effectiveness in the WASH (water, sanitation, and hygiene) sector. It provides examples from Liberia and Niger of strengthening sector policies, coordination, financing, and monitoring. Lessons are drawn from the education and health sectors, such as using compacts to outline mutual accountability and linking partnerships to aid effectiveness principles. A funding cliff is predicted for 2015 as available financing declines sharply without sustained commitments. The role of the Sanitation and Water for All partnership in addressing these challenges is highlighted.