Bring Your Own GPS: While you can rent a GPS from the rental car company, it will cost you to $10 to $20 a day. If you already own a GPS, there’s no reason you can’t bring it and use it in your rental car. For a five day trip, bringing your own GPS instead of renting one can save you anywhere from $50 to $100!

Fill Up the Car Yourself: Rental car companies charge a lot of money for gas. Therefore, if you return your car and it doesn’t have a full tank of gas, you’re going to get hit with a step fee for them filling it up. Fortunately, it’s easy to avoid this fee by simply filling up the car yourself before you return it. Keep in mind that the closer you are to the airport, the more expensive gas is going to be, so try to fill up your car before you get close to the airport.

Compare Your Options: Prior to the Internet, comparing rental car rates meant calling each rental car company, and sitting on hold until you could get a quote. Fortunately, this Internet has made it so much easier to compare rental car prices. By visiting a price comparison website, you can literally compare the prices from all the major rental car companies in less than a minute.

Book Early: This one is simple, but the earlier you reserve your rental car, the more money you will save on it.

Take the Time to Find a Discount Code or Coupon: Not only are they easy to find, but they can save you a lot of money. Best of all, in some cases, you can use multiple discount codes or coupons to save even more money.