Apparently, men will spend about twice as much as women this Valentine's Day (via Instapudit):

Men will do the bulk of the shopping this year, the survey found. The average male is expected to spend $168.74 – nearly twice as much as women – on clothing, jewelry and greeting cards, among other things.

I wonder if this is because Valentine's Day to women is more like Super Bowl Sunday for men? But did the women give gifts, help, free snacks etc. yesterday to their partners? This seems only fair.