Hand someone a ten-dollar bill, and most people will say you handed them ten bucks. It sounds casual, quick, and natural. Everyone says it. Gas is four bucks a gallon. Burgers go for six bucks. Movie ...

Before you toss your old pennies in the coin jar, take a closer look at them. They could be worth thousands of dollars to avid coin collectors — that’s a lot of money for pennies. Explore More: 6 ...