Okay, so I got an email about this deal last week and forgot all about posting it! Dairy Queen is celebrating the 25th anniversary of their famous Blizzard treat. As part of the celebration they are offering a $0.25 Blizzard if you purchase another Blizzard at regular price. This deal is good all week long (4/18-4/24) and is supposed to be available at all locations and not require any coupon. However, I always recommend calling your local store before doing a deal like this.