Road trip! You’ve mapped out your route and picked your stops along the way. The only thing left to do is figure out your rental car situation.You head to your local rental car center and score a great deal on a convertible. You’re ready to hit the road, right? Not quite. You’re offered a bunch of insurance options to cover your rental—and get downright confused.One option is a collision damage waiver. This prevents you from having to pay the rental car company if the car gets damaged or stolen.