If you're looking for something to get your significant other for Valentine's Day, you could easily default to the flowers/chocolate/cheesy card combo. Or, you could up your game and send them a puppy at work.On February 14 from 9 a.m. to 4 p.m., the Humane Society of Missouri is offering Puppy Grams — 30-minute visits from one of its cute (and adoptable) pets.…