Your year-end campaign is closed. The donations are in. Now pick up the phone and thank as many donors as you can.
You get two birds with one "phone" here: donor recognition
engagement. What an impression it makes to reach out, personally, to say thank you! The gesture is infinitely more memorable than a two-dimensional email, or a run-of-the-mill gift receipt and thank you letter.
And remember, the first step in landing gift #2 from a new donor is the proper recognition and expression of gratitude for gift #1.
Implement this by the end of the month for the strongest impact, even sooner if possible.