By DIANE STAFFORD Balloon vendors waited for customers outside a shopping mall on the eve of Valentine's Day in Beijing. If you pay attention to the Twittersphere, Hallmark Cards invented Valentine's Day to sell cards.

Unusual vintage Valentine's Day cards. By Mark Frauenfelder at 8:38 am Monday, Feb 13. 201202130837. Artist Mitch O'Connell opened his ephemera vault to find his sub-collection of unusual vintage Valentine's Day cards. Below, a small

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Need some help on last minute plans this Valentine's Day? There's … a bunch of apps for that. While paperless cards aren't exactly a new invention (we can't wait to see what someecards has to snark at us today!), Paperloss Post (www.paperlesspost.com)

And then there's Valentine's Day, whose murky origins have nothing to do with Hallmark cards or stuffed animals. According to History.com, from Feb. 13 to 15, the Romans celebrated a pagan fertility festival known as the feast of Lupercalia.