Chances are, the job you’re applying for is going to require to you to do some business writing—memos, letters, outlines, plans and proposals are possible. So not only should you brush up on your writing skills, you should use the opportunity of writing a letter to really impress a potential employer.

If you’ve already had the interview, then it’s assumed that you sent a cover letter and a resume. And hopefully, as soon as you left the interview you crafted a quick, polite thank-you letter and dropped it in the mail. Now a week has gone by, maybe two, and you’re starting to really get uptight about it.

Write a follow-up letter. It’s best to do this about a week after an interview, unless they indicated it would take longer to make a decision. You don’t want to wait too long and have it reach them after they’ve already made their decision to hire someone other than you.

Mention that you hope to have the opportunity to work there and how much you appreciate the time they took to interview you. If there’s something you can mention about your skills and how they might apply to the company, do so now.