Writing a thank you note to a customer is the perfect way to put the icing on the cake. Naturally, there are some things you’re going to want to emphasize, and some things you’ll want to avoid. Thanking a customer after the deal is closed is a great way to let them know you’re still thinking of them and that they’re important to you beyond just a sale. Here are some surefire methods for crafting a winning note that will make a lasting impression on your client.

Handwritten is most effective

There truly is no substitute for handwriting a thank you note. Notes and cards are generally tough to throw away, so don’t be surprised if your card is something that the customer holds onto for a while. If you’d prefer to write an email instead, avoid using automated templates that send generic emails to all of your customers. This is a good way for large companies to confirm orders, but in no way serves the same purpose as a personalized thank you note.

Keep it concise

Your thank you note doesn’t need to be a full overview of every aspect of your experience with the customer. For the most part, it’s the thought that counts, and they’ll be happy to read a short, but thoughtful note. If they shared a certain part of their personal life with you that seems appropriate to comment on, feel free to mention that in the end by adding something to the tune of, “Good luck with (blank)!”

Opening and closing

Usually, the biggest roadblock you’ll face is figuring out how to start the note. Sometimes, the best way to start things off is with the two most important words of the entire note: “thank you.” This is a great way to cut to the chase and let the customer know why you’re writing to them. Once that part is done, the rest of the note will fall into place.

Closing the note gives you a few options. Ending the note with a compliment, or perhaps a playful joke gives you a place to start. If that seems off-color, simply wishing them well and reminding them to return for future business will wrap things up nicely.

The value of thanking customers is something that can’t be overstated. The time it takes for you to write a note is small price to pay for the length of time that it will stick with the customer—at the end of the day, a simple thank you is a great way to earn repeat customers as well as gain referrals.