Holes in pen lids can save your life- The pen caps have holes to prevent suffocation if swallowed.
There are several names for the cardboard sleeve that covers the coffee cup. Other names for the coffee sleeve include coffee clutch, coffee cosy, java jacket, and paper zarf.
Bar code scanners read the white space between the black lines rather than the black lines themselves.
Salt was once used as currency, where the English term “salary” comes from.
Salt was so valuable to the ancient Romans that it was used as currency. Soldiers were paid in salt, which was also used for trading.
Wearing headphones for an hour multiplies the bacteria in your ear by 700.
Cough syrup is 5 times more effective than pineapple juice. It also protects against the common cold and flu.