While Kaplan is quick to note that the thank-you notes probably weren ... Bottom line: Showing gratitude can motivate your team to work harder, and you probably aren't showing enough right now.

To be very clear: The thank-you-note strategy is a rule of thumb. It is not a rule of law or an official policy. Insider Inc. has hired — and continues to hire — people who have not written us ...

While Kaplan is quick to note that the thank-you notes probably weren ... Bottom line: Showing gratitude can motivate your team to work harder, and you probably aren't showing enough right now.