If people need to travel outside their city and country they often have to rent a car – whether for a day or even just a few hours. Unfortunately, car rentals are a costly affair and this is why you need to learn about how best to save on the costs of renting a car. Hertz car rental discounts are an example of how you can shave off hundreds of dollars on the cost of your car rentals. You can look for Hertz car rental discounts in a number of ways though searching the Internet and trying out sites such as Mousesavers.com can prove to be especially beneficial to you.