I love to do nice things for people, for no other reason but to bring joy, but I especially love the opportunity to do something nice for people like my friend Patrick and his assistant Laura because ...

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

She hand-wrote him a thank you note after their meeting, expressing her gratitude for his time. Graef tells CNBC Make It that he was taken by the gesture, noting that "nobody ever does this anymore." ...