Those who follow CGD will be familiar with our branded meme: “Cash on Delivery” aid, or COD. Many are enthusiastic about COD’s potential to revolutionize aid effectiveness. Yet within some global development organizations, leadership and staff alike express common concerns: is COD practical in the real world? Have you thought about this problem, or that constraint? How would this work in the context of our organization? And if we decided to move forward, how would we design a COD grant?