Have you ever read the story about the rabbit and the turtle? The rabbit boast about how fast he was and took a nap. After he woke up, he realized that the turtle had beaten him. I thought about this when I think about following up with my potential customers with greeting cards. The snail mail might take a little more time but it gets the job done and eventually wins the customer over. Over time customers come to appreciate you taking the time to write a simple birthday, holiday or special event card.  Yes, you can easily send a ecard (rabbit) but that can get buried in with other emails but a real greeting card can be put up on a mantel to be adored for a while. Angela Samuels