Denny's A free cup of coffee with the purchase of any entree over $2.50. This might be the nicest meal in the house if you're dropping over $3 with tip.
Ingredient has a dozen chocolate-covered strawberries for $5.
Krispy Kreme. If you buy a dozen doughnuts, you get 12 Valentine's cards. Each of these cards is redeemable for a free doughnut. Bring a fake mustache, so it at least appears as though you are not cashing in all the cards for yourself.
McDonald's brought back the Shamrock Shake yesterday. This is for you, Bernie Mac.
Papa Murphy's has a Heartbaker (a heart-shaped pepperoni pizza, sliced in half with a cookie cutter) pizza for $7. Like Internet kitten photos, you'll either run toward or away from this as soon as you see it.
Romano's Macaroni Grill has half-priced bottled wine on Valentine's Day. This is perhaps how life should always be at the Macaroni Grill.
Starbucks. If you buy one featured drink (hot chocolate, vanilla spice latte or caffe mocha) after 2 p.m., get a second drink free. Drink coffee like you're in high school again.
White Castle is, of course, taking reservations. So get some Boon's Apple Wine for the train down to St. Louis and have a Valentine's Day to remember.
As always, kindly add any additional deals to the list in the comments.