Business Insider asked etiquette experts when it's appropriate to send a handwritten thank-you note. They said a note is essential after staying at someone's home or receiving a personalized gift.

"You can give a verbal thank you. However, a handwritten thank-you note for Christmas gifts provides that extra dazzle of appreciation," Johnson says.

A handwritten thank-you note does exactly that. It slows you down, and it signals that something mattered enough for you to ...

If there is one perennially-true statement about the business world, it's this: Successful companies are built on solid relationships, including your employees, vendors and — most critically — your ...

When was the last time you found a little handwritten note in your mailbox? The feel of the paper, the art of the postage stamp, personal penmanship, and the effort associated with getting that to a ...

In a world dominated by instant messages and digital communication, expressing gratitude through handwritten notes offers a ...

I realize that the concept of mailing a handwritten thank-you note after a job interview sounds really old-fashioned. But I still believe that sending such notes – even to an avatar – conveys more ...

With a written note, certainly a parent must stamp and address it, and perhaps hover over the child to inspire them to write.

Frank Mischler of Mischler's Florist has written an estimated 15,000-20,000 thank you notes to customers over the past decade, earning their loyalty in an age of declining customer service.