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 ...

If you're hanging on to a $1 coin, it might be worth much more than it appears. Here are four ways to check if your coin can be sold for almost $14,000, according to financial review site Tododisca.