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.

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 ...

Send handwritten thank-you notes to everyone who attended your bridal shower or gave a gift, even if you thanked them in person. Personalize each note by mentioning the specific gift and how you’ll ...

For many, summer is a time of transition: weddings, graduations, job interviews. And that means it's also a season for thank-you notes. In today's world, e-mail has replaced snail mail as the ...

A handwritten thank-you note does exactly that. It slows you down, and it signals that something mattered enough for you to stop and acknowledge it. That’s influence. They interrupt the noise. Nobody ...

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 ...