Go here and sign up to receive a coupon (mailed) for a free bottle of 24 ct. Advil Tablets or 20 ct. Advil Liqui-gels.
* I have been trying for a few hours and just keep getting a blank white screen. It is working for several other people so it is likely just getting slammed. Keep trying! It should take atleast a day or two for them to run out of the 500,000 coupons.