Lego is offering something for nothing ahead of Valentine's Day. On Feb. 9, you can build a Lego Valentine's Day Heart and take it home with you for free. A limited quantity will be available from 12-2 p.m. at participating stores. Clear your schedule. You've got plans this weekend.

Then there was Geoffrey Chaucer, who wrote in his medieval poem “Parliament of Fowl” that English birds mated on Valentine’s Day—“For this was on the seynt Valentynes Day, Whan every foul cometh there to chese his makes”—making every 14th-century couple start whispering sweet nothings to each other before dying of the bubonic plague or whatever.