• Renting a car can be a necessary, yet expensive, part of traveling. However, putting some time in to search online, shop around and simply ask for reduced rental rates can be well worth the effort, as it may save you a substantial amount of money.

• Some rental agencies will offer discounts depending on when you rent a car. Car rentals are often more expensive during the weekend, especially long weekends, than they are during the week. If possible, plan your trip so that you will be renting a car mid-week, when rates are usually cheaper.

You may also be able to save money if you book your rental several weeks, or even months in advance. Depending on the agency, you may get a reduced rate for an advance booking. If you do book in advance, keep an eye out for deals that are offered between the time you book and the time you are picking up your rental. If you see any advertised deals that would result in you getting a cheaper price for your rental than what you have agreed to, call up the agency you have booked with and ask them to match the offer—chances are that they will.

• The Internet can be a great resource when it comes to finding cheap deals. Do a few Google searches to see if you can find any coupons or coupon codes that will help reduce your car rental rate.

You can also check with online travel agencies such as Expedia, Travelocity and Orbitz for coupons and cheap car rental rates. If you're feeling lucky and are not traveling for awhile, you may want to consider bidding on car rentals at an auction sites such as Priceline and Hotwire.

Be sure to visit websites of the major car rental agencies in the area where you will be renting. Check to see if they are offering any promotions or special deals. Some rental agencies will offer discounts:

1. For veterans
2. For seniors
3. If you book online
4. To AAA members

• Sometimes getting a reduced rate or upgrade on your car rental is as simple as asking for it. Call around to rental agencies and ask them straight out what kind of discounts they will offer you. You can also mention that another agency offered you a cheaper rate than the one they have quoted you and ask them to match or beat it.