They Stuck by You — Now It's Time to Say 'Thanks'

Your goal isn't to lay out a new support opportunity, but rather to give your most faithful donors a sense of going "behind the scenes" with you to hear about something before it is public knowledge. Being invited to be on the inside is a great way to feel valued.

Something in the mail that matters
A variation of the letter is to send your loyal supporters an attractive greeting card that thanks them for being an important fried to your organization. A square-ish envelope with a card inside stands out in the mail, and your message of gratitude may brighten many of the recipients' days. You may want to include a small, inexpensive, mission-centric premium with this: a bookmark made by the people you serve, a drawing by the children in your program or a great photo from your project that is a "keeper," for example.