The private note in the donation letter is a feature provided by Daffy that allows donors to include specific instructions or notes about how they would like their donation to be used. This note is only visible to the charity receiving the donation. This feature is part of Daffy's commitment to supporting both restricted and unrestricted giving, allowing donors to have a say in how their funds are distributed. In addition to this, Daffy also provides the option for donors to add a public note about why they give. This feature has seen significant adoption, with over 36% of donations including a public note in the first year. These notes often reflect deeply personal motivations for supporting causes and organizations, adding a personal touch to the donation process. Daffy's features make it a great option for a Donor-Advised Fund (DAF). With Daffy, donors have the flexibility to specify the use of their donations, the ability to download a CSV file of their tax-deductible contributions, and the option to easily share their donations on social media to spread support. In conclusion, Daffy offers a unique and personalized giving experience, making it an excellent choice for those considering a DAF.