Consider the organizations you belong to that may offer member discounts on rental cars. Visit your travel club if you belong to an organization that offers travel services or discounts. Members of AAA, for instance, qualify for tour books that often contain discount codes. AARP Members should browse their member newsletters for travel-related advertisements offering member discounts; credit union members may have discount travel services available as well.
Contact the department that handles your company's corporate travel and inquire about any special discounts offered to employees of your organization.
Visit your local bookstore and browse through travel magazines for applicable discount codes.
Go to a local branch of the car rental agencies you're considering and sign up for any customer loyalty programs they offer. Doing so may lead to receiving flyers in the mail outlining special discount opportunities.
Sign up for mailing lists on car rental agency websites. These websites often offer discount codes to loyal or potentially loyal customers to secure your business.
Explore websites that specialize in collecting coupon codes. A quick search on "car rental coupons" will bring up a number of sites specializing in codes that can save you money on your next trip.
Search for websites related to the event you're attending if you're traveling to a conference, festival or special event. The sponsoring agency may have worked out discounts for those traveling to the event.