Less than 40% of job seekers take the time to send a thank you note after an interview, according to an article by MSNBC. But, this important follow-up can make the difference between receiving the job offer and being written-off as disinterested. In fact, because it’s such a rare step for most job seekers, it’s a very valuable tool to show your professionalism and enthusiasm for a job.

By being one of the few who take this important step, you can increase your chances of landing the job. The tips below can help you craft a winning thank you note.

Follow up quickly. It’s important to send your thank you note as soon after your interview as possible. Mailing it the same day is best. However, if the interviewers will be making a decision quickly, you may not want to wait for the note to arrive through traditional mail. In this case, consider hand-delivering or e-mailing a thank you note to ensure it arrives quickly.

Use correct spelling and grammar. The only thing worse than not sending a thank you note at all is sending one with lots of misspellings and grammatical errors. Before sending your letter, make sure you’ve thoroughly proofread it. If possible, have someone else look it over for errors as well. Rewrite your note if it includes mistakes – don’t scribble them out or use correction fluid. Sending a polished thank you note gives you another opportunity to let your skills shine.

Thank everyone who participated in the interview process. Often, job interviews involve meeting with multiple people. When you send your thank you note, make sure to thank each person you met with. To make sure you have the correct spelling of each person’s name, request a business card during the interview. While it’s best to thank each person individually, it’s also acceptable to send a group thank you. Sending a group thank you note is practical when you met with some of the individuals briefly or only interviewed with them in a group setting.

Restate your qualifications and interest. Not only is a thank you note your opportunity to express gratitude for the time interviewers took to meet with you, it’s also the place to restate why you’re the right candidate for the job. If there are any relevant details you forgot to mention during the interview, now is the time to share them. Also, make sure you end by professionally expressing your enthusiasm for the position.

When you make the effort to thank employers for their time, you set yourself apart from other candidates. By communicating your interest and gratitude in a concise and error-free format, you’ll leave a lasting positive impression.