This deal seems just too good to be true! Even the cashier at my store was shocked when the Extrabucks printed on this one. Buy one six-pack Crest Sensi Strips for $11.99 and get back $12.00 Extrabucks! This is a great deal for rolling or refreshing expiring Extrabucks. And with a promo limit of two, you could even do this deal twice. If your store is out of stock, be sure to get a rain check.