According to GOBankingRates, $5 bills with serials such as "G88888888A” or "B55555555C" could be worth a lot due to their "solid" gold serial numbers, meaning that all the serial are identical.

Retirees could save big by negotiating these 5 common bills. Don’t overpay—see which expenses you might be able to lower starting today.

If you see a $5 bill laying around, do yourself a favor and at least reach out and see if you might be able to make it yours. Not every one will end up in your pocket, but a whole lot less will if ...