Dominos Pizza has a very nice addition to their website.  Go to their home page, click on coupons, enter your zip code and they give you all the coupons valid for your area.  Then, click on the coupon to order the deal you want.  No need to print a coupon etc.  The page below is just a sample, to get the deals for your area, go to THIS LINK and click on Coupons.