The exchange of greeting cards has become a part of the American culture. Americans send more cards today than any other nation in the world. Since the introduction of e-cards people have bought fewer paper greeting cards, but Americans still buy about 6 billions of them annually. There are a lot of occasions when you can buy one: Christmas, numerous birthdays of your friends, family members, and co-workers, baby showers, graduation, Halloween, and many more. According to the Greeting Card Association, about 80% of all cards are bought by women.
Many Americans consider their pets a part of the family and that is why they include their pets' names on the card. So one day you can receive a greeting card with the following message: Happy Easter! Lots of love, Jack, Jannie, and Dexter. Or something like that: Happy Birthday! Best wishes from Anna, Michael, and Fluffy!