Buy a Blizzard at Dairy Queen and you can get a second of equal or smaller size for just 99 cents.

The promotion runs through Sept. 23 at participating locations in the U.S. and through Sept. 16 in Canada.

Dairy Queen’s website and an e-mail I received from the Blizzard Fan Club said you don’t need a coupon for the special.

Go to www.dairyqueen.com/us-en/Promotions/ to see the offer.