Most people toss old coins into a jar and forget about them. That's a mistake that could be costing you real money.The global market for old and rare coins is genuinely booming right now, and the ...

According to Donn Pearlman at the Professional Numismatists Guild, there are a few things you should absolutely not do before you can get your coins evaluated.

Americans are holding an estimated $60-$90 in coins per household. While some rare pennies are valuable, most are worth only a few cents. Consumers can exchange coins for cash at banks, credit unions, ...