Having access to reliable transportation when you are visiting a new city for work or play is important. If you don't want to rely on the limited schedules that public transportation methods offer, then you should consider renting a car. Car rental services give you the freedom to explore at your own pace.

If you are unsure how to navigate the rental process, there are some simple things that you can do to avoid costly mistakes when renting your first car.

1. Don't pay for insurance coverage you don't need.

You want to ensure that you have financial protection in the event you are involved in an accident while driving your rental car. Many renters think that this means purchasing additional insurance policies that can drive up the cost of a car rental.

Check with your own insurance company before you embark on your trip to determine if your existing auto insurance policy will provide coverage for your rental car as well. Credit card companies sometimes offer secondary collision damage for cars booked with a card also. Knowing your insurance options will help you maximize the benefit of your rental car while minimizing costs.

2. Opt to rent from a  lot that isn't located at the airport.

Car rental companies often have many different locations from which customers can rent vehicles. While you may be tempted to rent from one of the lots located at your destination airport, doing so could be costly.

Airport surcharges and fees might apply to your rental, driving up the cost of using a car for the duration of your trip. Compare pricing with a rental lot that isn't located at the airport to see if you can secure a more affordable rate. These lots often provide shuttle services to and from local airports, so you can still conveniently access your rental car.

3. Pay for your own gas.

When you return your rental car to the rental lot, the gas tank will need to be full. You have a couple of options when it comes to filling the tank. You can pre-pay to have the rental company do it for you, or you can stop by a local gas station on your way to return the rental vehicle and fill it up yourself.

Be sure that you ask the rental company how much it will cost to pre-pay for gas, then compare this cost to local gas prices. Paying for your own gas will often save you a couple of bucks.