Credit card perks Full Article – A few often overlooked credit card benefits: double warranty, purchase protection, satisfaction guarantee, collision damage waiver, lost luggage, travel advisor and many more with some credit cards. Check out the benefits from Discover Card. Check out the benefits from American Express. Share this: Click to share on LinkedIn (Opens in new window) LinkedIn Click to share on X (Opens in new window) X Click to email a link to a friend (Opens in new window) Email