The document outlines a collaborative effort in Bangladesh to identify and prioritize water and sanitation interventions, engaging economists, sector experts, and various stakeholders. It details the outcomes of roundtable discussions organized by the Copenhagen Consensus Center and BRAC, yielding over 100 ideas focused on improving sanitation and water access. Key initiatives include community-led total sanitation, behavior change communication, and various strategies for enhancing hygienic practices across urban and rural areas.