Just landed a perfect-for-you job? Awesome. Now it's time to prove your boss that she made the right decision to hire you. Play your cards right, and you'll become an invaluable member of the team and hopefully earn a promotion down the line.

To get to that next level, let's take a chapter out of Mark Cuban's book. The sage billionaire, Shark Tank star, and owner of the Dallas Mavericks recently spoke with Money magazine about the skills he finds most valuable in employees.

There are few obvious personality traits he says are non-negotiables: Smart. Driven. Constant learners.

And then, there's a less-obvious one. Cuban says even he lacked this key personality trait in his 20s -- and it got him fired a few times.

Today, it's Cuban himself who's in the position to do the firing. He says if employees bring this to their day-to-day work, he'll keep them around as long as possible. The "magic" personality trait of Cuban's top performers and most valuable employees? He knows he can count on them to reduce his stress.

"The people who tend work for me a long time, they understand that the greatest value you can offer a boss is to reduce their stress," Cuban told Money. "Anybody who reduces my stress becomes invaluable to me," he added. "I never want to get rid of them."

Toss your boss a stress ball and call it a day? Not quite. Cuban is talking about solution-oriented people who can self-manage and won't touch drama with a 10-foot pole. Here are a few ways you can reduce your boss's stress, making you an invaluable member of the team.

Cut out the drama.

Some people thrive on drama. These are not the kind of employees Cuban wants working for him. Drama magnets start fires and make things more difficult, he told Money.

Ironically, the drama-inducers tend to be people who think they're invaluable. Quite the opposite. Cuban wants these types of people out. They give him more to worry about and he already has enough balls in the air.

If drama's your thing, find a way to make it not your thing. No one likes dealing with the person known to cause drama at work, especially your boss. No one wants to spend time mediating petty workplace disagreements. So don't bring drama to work.

Bring solutions, not problems.

Reducing your manager's stress doesn't mean you should keep every concern a secret. That's just a recipe for disaster. If you need to make your boss aware of a problem or challenge you're struggling with at work, definitely do so.

To avoid becoming known as the complainer who's always whining about problems, arrive armed to the conversation with potential solutions.

Workplace too noisy, making it difficult to remain on task? Request work-from-home days so you can focus on deep thinking work.

Feel like you're being pulled in too many directions? Suggest working together on prioritizing your tasks so you know where it's best to focus your efforts.

Craving more tools and guidance to do your job well? Take the initiative to get regular one-on-ones on the calendar so you can get feedback and constructive criticism from your boss.

Simply being a manager or boss comes with its own stresses, most of which you are not privy to. There are plenty of situations and conversations happening up top that are likely already causing your boss stress. So don't be a part of making it worse. Think about how you can lessen it by becoming their go-to problem solver who can help peel that stress away.