Investment in sanitation without adequate awareness building and bottom-up demand creation is literally a waste of money. I agree CLTS programmes have proven to be the most effective but are as yet, even in Bangladesh, inadequately scaled up or institutionalised. Government and government bodies, local and national, are very poor in reaching and interacting with grassroot communities. To scale up, there is a need to ensure partnership between government (policy maker and fund provider), NGOs (social mobilisation and awareness raising) and communities (self-help initiatives supported with partial funds). It is this triangular partnership which can have the biggest pay-off and scale-up potential at the lowest cost.