This document discusses strategies for improving donor retention rates for donors from Giving Tuesday. It recommends segmenting donors and communicating with them promptly after their donation. For new donors, it suggests making phone calls within 48 hours to thank them personally. It also recommends surveying donors to understand their motivations and sending impact stories to demonstrate how their donation was used. The document provides data showing higher retention rates and future donations associated with timely thank you calls and personalized communications for donors. It highlights the importance of retention over acquiring new donors due to the lower costs associated with retaining existing supporters.