There's a new $0.50/1 Duncan Hines Brownies printable coupon available! Duncan Hines Brownies are occasionally on sale for as low as $1, making them FREE after this coupon if your store doubles! Thanks, Money Saving Mom! New $0.50/1 Duncan Hines Brownie Mix Coupon (FREE Brownies!) was first posted on July 19, 2011 at 10:01 am. [...]