There are many different practices that are important when driving a vehicle. Here are a few of the most important ones:
Always wear your seatbelt. Seatbelts save lives & are required by law in most states.
Never drive under the influence of drugs or alcohol. Driving while impaired is dangerous and illegal.
Pay attention to the road and what is happening around you. Driving requires your full attention.
Obey the speed limit. Over speeding is among the leading causes of accidents, and you'll be in a difficult spot if you go way past the speed limit.