Holly Richardson: I have a few thank you notes to send

“Silent gratitude isn’t very much use to anyone.” -- Gertrude SteinWhen is the last time you received a hand-written thank you note in the mail? Chances are pretty good that you remember it because it is such a rare occurrence.In fact, in 2010, the U.S. Postal service surveyed American households and found that on average, each household receives a hand-written note once every seven weeks. In 1987, it was once every two weeks. Imagine what it is today -- an event so rare it sti