What is the most valuable coin in the world? (It's a U.S. coin worth over $18M!) Here's an up-to-date list of the most valuable U.S. coins by denomination -- from pennies through dollar coins.
Find out how to clean coins with vinegar and other simple products like baking soda. These DIY solutions will get your silver, like quarters and pennies a new lease on life. Learn how to remove dirt and gunk from all your coins with these fun and easy techniques. #cleancoins #coincleaning