Go to ShopAtHome to order your tax software.
Today ShopAtHome is offering 20% rebate for H&R Block At Home. They also have a link for 15% off the normal price. When you go to ShopAtHome, first sign up if you do not have an account (you will receive a $5 sign up bonus) and then search for H&R Block At Home. There will be a Header that says "Save even more with H&R Block at Home coupons", Click the one that says "It's Tax Time - save 15% on H&R Block at Home products!". It will automatically take you to the products and they will already be discounted 15%.
For example, the most common software would be the Deluxe edition, which comes with a State program. It is normally $44.95 but with 15% off it is only $38.91. You will then receive 20% back, $7.78 and if you are a first time ShopAtHome user you will also recieve the $5 sign up bonus. So net price you will only be paying $26.13. If you normally purchase this software every year you know this is a good deal!