An expert shares what to write in a thank you card for graduation, birthday, funeral and gift-giving occasions. ... We are so happy you could share this special day with us.

Thank you for letting me be part of your special day—happy birthday! 17. To the one who gives her all every single day: You inspire me to do my best and live life to the fullest.

But if you really want to let her know you appreciate her thoughtfulness, there is no harm in taking three minutes to write and mail her a thank you. "Being part of a society means knowing how to ...