When you need to rent a car, use AutoSlash to get a lower rate. The website will check rental rates until the date you will be picking up the car. If a lower rate becomes available, the site will alert you and rebook your rental with the company that has the lower rate. http://www.autoslash.com/. Bonus idea: Estimate the amount you saved and put all or at least part of it in your savings account.
Save Money on Car Rentals