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.

Opinions expressed by Entrepreneur contributors are their own. If there is one perennially-true statement about the business world, it’s this: Successful companies are built on solid relationships, ...

Dear Annie: Is saying “thank you” out of style now? If so, I need to change my ways. Polite people are seen as pushovers, I suppose. When leaving a grocery checkout, I usually thank the cashier, but ...

A thank-you letter provides an excellent opportunity to show gratitude for someone’s time and effort. They also present you, the sender, in a positive light. That’s not to imply that you should send a ...