Adrienne of Baby Toolkit fame shares two great Valentine hacks:
1) My playgroup mommas are having a toddler-free pitch-in decorating party where we'll make Valentine's cards and decorate sweet treats for our families. [Always more fun with company, and with a collective pile of glittery, lacy decorations. — Ed.]
2) Make a giant cardboard heart (think oil painting frame in size) and taking Valentine's photos of the kiddos looking through it.