Check the BBB rating of your local car dealers before you visit them. As you likely already know, car dealers can be less Effuel Reviews than honest. Save yourself from a lot of stress and expense by investigating how others feel about the car dealer. The time it takes is nothing compared to the time you can waste at a sheisty dealer.
Set a budget and stick to it when shopping for a car. It can be very hard to stick to a budget when you find a car that you really want, but there is nothing good about an impulse buy. Figure out what you can afford before you start looking so that you do not break the bank.
If you are car shopping and want to test drive some different cars, make sure you bring your license and insurance card with you. Many dealers will want a photo copy of them before you drive. This is just to protect them in case someone steals or damages a car. If you do not have them with you, they might not let you test drive.