There is also a postcard-sized card to print and fold in half, with plenty of space inside for you to share a Valentine's Day joke. Xerox has a wide selection of free printable Valentine cards ...

While Hallmark did not invent the occasion, it played a big part in bolstering its popularity by selling Valentine's Day postcards in 1910, and then printing its own greeting cards from 1916. Now in ...

And while Hallmark did not invent the occasion, it played a big part in bolstering its popularity by selling Valentine’s Day postcards in 1910, and then printing its own greetings cards from 1916.