Your interview is in 24 hours. Use these four must-dos to help boost your confidence.

Even if you have less than a day before your job interview, you can outshine the competition with a little interview preparation. The following four tasks will take you about four hours (plus five minutes) to complete, making this the best approach when it comes to how to prepare for an interview.

1.Conduct basic interview research

To prepare for an interview, find out as much as you can beforehand. Call the person who scheduled your interview and ask:

• Who will you be talking to? Will you meet the manager you'd work for, or will you just talk to HR? What are the interviewer's expectations?

• What's the dress code? Dress better than suggested. Most times, it's best to wear a professional suit. You'd be amazed how many candidates show up looking like they're going to class, not presenting a professional demeanor.

• Get directions to the office. Plan to leave early. Keep a phone number to call if you get stuck on the bus or in traffic. If you arrive late and stressed, the interview will not go well.

• If you don't have a detailed job description, ask for one.

2. Learn about the company online

Do some fast research, which will give you something to talk about in addition to the job description. Go to the employer's website, or Google information such as:

• How big is the company in terms of annual sales or employees?

• What does the company say about its products or services?

• What recent news (such as a new product, a press release, an interview with the CEO) can you discuss?

• If the company is public, the boilerplate at the bottom of its press releases will tell you a lot.

• Basic research should take you about an hour.

3. Think of some stories

Be ready to answer typical interview questions with a story about yourself. To prepare, write down and memorize three achievement stories. Talk about times you've really felt proud of an achievement at work or school. These stories demonstrate all those hard-to-measure qualities like judgment, initiative, teamwork or leadership. Wherever possible, quantify what you've done, e.g., "increased sales by 20 percent," "cut customer call waiting time in half," "streamlined delivery so that most customers had their job done in two days." By the way, non-work achievement stories are good too; if you volunteer for the local food pantry, write down a time you overcame a big challenge or a crisis there.

Achievement stories make you memorable, which is what you want. There's an exercise in Monster Careers: Interviewing called "Mastering the Freestyle Interview," which helps you develop these stories into compelling sales points.

Take the time you need—at least three hours on this task.

4. Pick your outfit, and go to bed early

Lay out your interview outfit the night before, get a good night's rest, and always get an early start. The last thing you want is to waste all of your interview preparation by arriving flustered and panicked because you couldn't find a parking space.