In business, most of the gifts you receive aren’t tangible. Whenever someone gives you their time, advice, or a helping hand, it’s more than enough reason to genuinely thank them.

For example, let’s say you’ve been courting a company for a few months and you feel an introduction to the CEO would help you clinch the deal. After some research, you reach out to an alumnus from your university who knows the CEO. You ask this person for an introduction and he happily obliges, which ultimately helps you make the sale.

Everyone’s time is valuable. Whenever a friend, colleague, or client choses to set aside his other responsibilities and help you, the best way to show your appreciation is to personally thank him through a handwritten note.

Read How to Write an Unforgettable Thank-you Note by Jacqueline Whitmore at Entrepreneur