Every state in the U.S. requires would be drivers to study a driving manual, practice driving under the supervision of a licensed driver, and successfully pass written tests and driving tests.

But, sometimes it is hard to believe that any level of competency is required to be given a license. Take a ride for just three or four hours and you'll count dozens of bad drivers, some extremely dangerous. Here is how to be sure you are not among them.

1. Never drive after consuming more than one alcoholic beverage. The alcohol in two cocktails will, at the very least, slow your reflexes.

2. Follow safely; at least two seconds behind the vehicle you are trailing. If others are following too closely, leave even more room between your vehicle and those in front of you.

3. If the car behind you is following at an unsafe speed, let him/her pass. Do not allow drivers behind you to put you and your passengers at risk.

4. Adjust your mirrors with care and be aware of where your blind spots are.

5. Never assume that other drivers will stop at red lights or stop signs. Always look before driving through an intersection.

6. Note the actions of other drivers, especially on interstate highways. Once you note over-aggressiveness or other unsafe actions, pay special attention to the drivers displaying them

7. Anticipate and drive defensively at all times.

8. Take extra care and drive at lower speeds when road conditions, weather, or visibility are not optimal.

9. Maintain your car well. Be sure brakes are in top shape, do not drive on worn tires, etc.

10. Never make another driver adjust his/her speed or course. If you do, you are driving badly.

You may not be able to change the way others drive, but you can help make the roads less stressful and safer by following these simple tips.