15% of U.S. women send themselves flowers on Valentine's Day.
About 3% of pet owners will give Valentine's Day gifts to their pets.
In Victorian times it was considered bad luck to sign a Valentine's Day card.
About 1 billion Valentine's Day cards are exchanged each year. That's the largest seasonal card-sending occasion of the year, next to Christmas.
The highest combined age of a divorcing couple is 188, by Ida Stern (91) and her husband Simon (97) of Milwaukee, Wisconsin, US, in Feb 1984.