A perfect complement to a targeted permission-based email campaign is an occasional direct mail communication.
I have discovered SendOutCards.com. This online tool creates personal and personalized greeting cards, then the company has your cards stuffed, stamped and delivered within 7 business days.
What is nice is not only do they have huge collection of greeting cards to select from, they also allow you to create cards from pictures on your desktop.
When email campaigns integrate with a variety marketing tools like this one, the results improve.