Winter preparation often focuses on stocking up on essentials like food, warm clothing and emergency supplies. But cash, ...

When is 50 bucks worth a whole lot more than 50 bucks? When it's a rare 50-dollar bill worth thousands of dollars! Don't plunk down that 50 to pay for dinner until you take a closer look.

Also, find out why you might want to have some $100 bills on hand. Fifty-dollar bills are the perfect size for covering certain regular, mid-sized expenses without the bulk of smaller denominations.