The costs of purchasing the rental car damage waiver is significant and downright frustrating.  Unfortunately, many customers assume damage to the rental vehicle is covered by their credit card benefits or their auto insurance policy.  Do you know though what is actually covered and what isn't?  More importantly, do you know your potential out-of-pocket costs that aren't covered?  The answer may surprise you and make the cost of the damage waiver more cost effective than you currently think.