UPDATE: It looks like this is gone as there is now no place to put an address.
You can score a free sample of Cover Girl Advanced Radiance Makeup and you even get a $2.00 coupon. You can head over here to get your free sample.
Note: You will also be registering for the Cover Girl profile and will have to supply your mobile number but you can change the mobile preferences.
(Thanks mavinofsavin!)