Whether you shop for car insurance online or go one of the other routes, make sure you come prepared with all of the information you need to get an accurate quote. Take stock of your car's make, model, year, vehicle identification number (VIN), the zip code of where you park the car at night and any aftermarket safety or anti-theft accessories installed on the car. Get the license numbers of every driver to be insured under the policy, as well as the date when they were first licensed, and obtain a copy of your driving record. Get an updated credit score as well -- your credit rating can affect your auto insurance premiums, since some insurers say those with poor credit scores are more likely to file claims [source: Roberts-Grey].
There are a few steps you can take to get lower insurance premiums, as well. Tally up the number of miles you drove this year versus the previous year -- a significant decrease in the mileage you drive might help you get a lower quote. Consider completing a defensive driving course online, insuring multiple vehicles (or your home) through the same insurance company or looking for a plan with a higher deductible. You might even want to eliminate certain types of insurance not required by law in your state; you could forego collision and comprehensive coverage on very old cars, for instance [source: Insurance Information Institute].