I always decline the insurance coverage offered by the car rental agencies. It typically runs $15 to $20 per day and provides coverage from your deductable on down to zero. It also covers "loss of use" which is when the vehicle is being repaired, you can be billed for the days that they can't rent it. A credit card, Visa, Amex, MC, etc with Gold benefits and up usually cover your deductable. It does not cover vehicles like a pick up truck or an SUV larger than a Ford Explorer however. Today Amex called and offered me rental car protection with my Delta Sky Miles Platinum Card. It covers the complete vehicle so that you never have to use your own insurance. It covers any type of vehicle except motorcycles, RV and limos. It also provides loss of use coverage. Now this coverage, many cards have dropped because the rental company has to prove that the loss of that particular vehicle was a hardship. They have to prove that 90% of their fleet of that car type was rented. However, if they do, you can be stuck for it. The cost of this additional coverage is $19.95 per rental agreement. That rental agreement can be up to 65 days long. The usual credit card coverage only goes to 30 days. You are only billed when you rent the car and charge it on the card with the coverage. You can drop it at any time. For $20 bucks, it sounds pretty worry free to me.