When you receive a gift from someone, Colin says the proper protocol is to send a written thank you note within 48 hours. "[That's] 10 points," he says. "[A phone call is] 9 out of 10. An e-mail, 8 out of 10. A fax, 7 out of 10. The most important thing is just to acknowledge it. … It's never too late—you can do it in two weeks' time as long as you remember."
In fact, Colin says the first thing he does every morning is write last night's thank you card on his personal stationery.
You'll also find Colin's stationery at his favorite chocolatier, liquor store and florist. That way, when he sends someone a box of chocolate, a bottle of wine or a bouquet of roses, he can dictate a note on his stationery instead of a generic gift card. "I think those details are important," he says.