Buy 1 dozen donuts at Krispy Kreme and get 1 dozen free Valentines. Plus, each card is a coupon to get a free donut. So basically, if you buy 1 dozen donuts, you’ll get a dozen donuts free. My cashier did not give the Valentines to me without my asking, so make sure you ask! I thought about giving out my Valentines, but have decided against it. I like the chocolate custard filled a little too much. 
image from Krispy Kreme
[...] Krispy Kreme is giving away 12 free Valentine cards with the purchase of a dozen donuts. Each card is a coupon for a free donut, so it actually becomes buy 1 dozen get 1 dozen free. More details at Thrifty Mommy. [...]