Mother's Day.
i think personally the only Holiday that the Americans really exchange more cards that on valentines is Christmas !
mothers day
Its either Valentines day or Christmas, but I would say that Valentines day probably beats any other holiday in card sales.
christmas-new year cards
I believe that'd be Christmas.
30
You can buy corporate holiday cards all at gallerycollection.com They have great selection of corporate holiday cards which are perfect for any occasion.
Christmas because of how many cards sent
Harpie and Amazone cards (mainly Harpie)
Hallmark cards are greeting cards for birthdays, Valentines Day, Mothers Day, etc.
Esther Allan Howland who created lithographed valentines cards in 1847, placed her first ad in the Worcester paper, The Daily Spy, Feb. 5, 1850 for sales of Valentines Day cards. In 1881, she sold her business to the George C. Whitney Company, one of the nation's largest publishers of Valentine's Day cards.
so no one knows who sent it