Not a deal, per se, but I mentioned this in another thread.
Target's currently has CoD: Ghosts for $23.49 for Xbox One on their website. They price-match their website in stores, and they're also doing a promotion right now where you can pre-order the next CoD for $1 to get $20 off CoD: Ghosts. This brings the price down to $4.49 + Tax for a new copy of Ghosts (caveat: the point-of-sale will allow this transaction, but one employee at a Target I went to would only allow me one promotion or the other).
Gamestop is currently doing a deal this week where, with coupon, you can get an extra 50% trade-in on each game. At the moment, they're offering $20 base price for Ghosts for Xbox One; plus coupon, this puts it at $30 (or $32 if you have Gamestop's discount card). You can't trade in more than one copy of a game per day per Gamestop, but I've traded three copies so far and gotten $100+ in store credit so far (the trade-in value dropped earlier this week). If you can't find the 50% coupon (oftentimes they'll have a couple lying around in the front, even if they say they don't have any), they're also doing a "Get 30% extra when you trade in towards a pre-order of Madden 15." You can do this, preorder Madden 15, get the bonus, then simply cancel your pre-order later on and get all your credit (plus the bonus) back.