It's quite possible that you live near a KB Toys store; they must
still exist or there wouldn't be anybody to announce these promotions. In our personal experience, however, we haven't seen one in years.
Every store near the last, say, three or four
places we lived has gone away, taking their giant bins of 3/$10 action figures with them.
If, unlike us, you're lucky enough to have access to a KB Toys, you can stock up on DS and GBA games this month. From now until the 30th, you can buy one DS or GBA game and get the second for half-price. And if that's not enough to send you to the mall, the same deal applies to Play-Doh.
[Via Joystiq; yes, that is a real product]