I don't exactly have a need for an hourglass in my life — a shower timer, yes. Commonly used in Italy during the 14th century, hourglasses were useful for keeping time during church sermons and for measuring time and distance on ships. But, for obvious reasons, they're not as common anymore. I'm tempted to buy this Black Hourglass ($26) on looks alone, though. Do you own one? Do you use it?