First off, it's best to price compare using the internet. There are travel websites that will search most available rental agencies for the dates you'll need the car. You can compare size, amenities, and prices so you can find the best car at the best price. Keep in mind that the rental rates don't usually include all taxes and fees. It's also wise to check individual rental companies' websites since some specials are only available through the agency's website.
Additional Discounts
There are some discounts that are not advertised and difficult to get if you're not aware of them. These include senior, AAA and corporate discounts. These entitle you to a special rate or a percentage off the regular rate. Discounts can not usually be applied to special rates which are usually the cheapest in any case.
There are also discounts available in conjunction with airlines. Rental companies and airlines partner up to give special rates to each others' customers. By doing so they are able to attract more business. You'll need to ask for a discount code which is applied to your rental.
To get your discount there is usually a place for a discount code when booking online. If you don't have the code then contact the company entitling you to the discount (such as a car club or airline) and request it. You can also call the rental agency directly and ask for the discount to be applied. To get the discount you'll need to show proof, such as your airplane ticket or membership card when you pick up your car.
Packages
You can also save on car rental rates by including your rental in a vacation package. A vacation package will include airfare, car rental and accommodations. It is generally cheaper than buying everything individually. To look for packages, search online or check with travel agents. Some travel agents have contracted special rates so they can find you the best deal for your vacation. They're convenient since they do most of the legwork for you and offer you one stop shopping.
Insurance
Car insurance is necessary and required but it's not always cost effective to use the rental agency's insurance. You might be covered by your current insurance or the credit card you're using to rent the car. Insurance will be a large part of your final rental cost so it's certainly beneficial to do some research beforehand.
