Yahoo! found some secret credit cards perks that few people know about!
Purchase protection: Get reimbursed if your new purchase is stolen or broken. If you buy something and it's stolen or broken in the first 90 days, your credit card will write you a check of up to $1,000. Many credit cards have it, especially the higher end ones, though some limit it to $500 and others pay $1,000.
Discounted movie tickets, flowers and purchases from major retailers. Check for the discounts on your credit card's website.
Price protection: A refund if you find a lower price. If you buy something with your card and then see it advertised in print for less within 60 days, you will receive a refund for the difference up to $250.
Dedicated concierge staff -- free. Most credit cards now offer a 24-hour personal concierge service, which will make your dinner reservations, purchase tickets to events, and almost anything else you can think of.
Skip the car-rental insurance -- since your credit card may provide up to $50,000 in secondary coverage against collision or theft. (This is provided that you book the car with the credit card and again, check to make sure your card offers this.)
Some credit cards offer roadside assistance so you can skip it when buying a new vehicle or renting a car.
Automatic extended warranty. You credit card may match whatever store/manufacturer warranty your new prodcut comes with -- up to one year.