Be aware that at some locations, you can only request a child seat to be their waiting for you without a guarantee. Many companies currently are offering online discounts on the internet. When reserving online, be sure to print out or take note of your confirmation information and take this with you to the counter. To get the best service, check your rental car companies website or inquire with them for what exactly they offer in the way of special services. Check to see if your regular car insurance covers you in a rental car.
Some credit cards have rental car coverage, too.
Most of the time these are optional coverage's. This means if you rent your car on Wednesday and return it on Thursday, you are charged for one day only if you return it within 24 hrs. You are usually charged for 2 days if you return it more than 27-28 hrs after picking the car up. The policy for most companies is that an hourly rate is charged for the first 3-4 hrs after 24 hrs. Returning the car after the hourly rate period means a whole extra day is usually charged.