75 'Thank You for Being a Friend' Messages That Are Heartfelt and Sincere originally appeared on Parade.

An expert shares what to write in a thank you card for graduation, birthday, funeral and gift-giving occasions. Find heartfelt messages for family and friends.

One card simply stated: “Thank You for Being My Person.” Advertisement According to the Greeting Card Assn., Americans purchase around 6.5 billion cards each year.