As much as we hate the Hallmark-ization of seemingly every holiday (really — who’s out there buying cards for Friendship Day?), we get some kind of nostalgic rush from doling out the cards on Valentine’s Day. Maybe it’s our Save Charlie Brown complex, but there are too many funny, unexpected ways to say “I love you” — or just “You’re Kind of Cool” — out there for us to let this holiday pass us by without using up all our LOVE stamps. Jack Cards is stocked with simple, straightforward designs and motifs (a shamrock-stamped card ensures “You’re getting lucky tonight. (Just thought you should know.),” with an off-kilter sense of humor (a cross-stitched Adam-and-Eve-motif card suggests: “Let’s Do It.”). The New Yorker Store.com has stacks of Valentine’s Day notecards reproduced from classic illustrations from New Yorker covers as well as cartoons (a snail convinces his fellow shell-dweller that he’s in love with a tape dispenser). Cupid goes mod with Seltzer Goods’ cards with simple graphics and irresistible one-liners (a mustachioed paramour stares out at you and commands: “look into my eyes. we are destined to be lovers.” Who could argue with that?). Kate’s Paperie offers charmingly retro choices plucked from old-fashioned ephemera. But perhaps our favorite collection comes from the uniquely twisted sense of humor over at Selfish Kitty, like the Happy Valentine’s Day wish from a secret admirer . . . ”You may remember me from outside your window.”