NEW YORK—At the close of trading Monday, the U.S. dollar dipped to a record low of $.60 against the counterfeit U.S. dollar, which also outpaced the dollar against the euro and the yen.

"We don't even accept regular U.S. dollars anymore," said Union, NJ 7-Eleven manager Rick Grove, echoing the sentiments of merchants nationwide. "We've gotten stung a few times taking in the real ones. I always tell my cashiers, if it feels fake to the touch, and you can't see both sides when you hold it up to the light, it's fine."

Concerned about further devalutation of standard U.S. currency, Federal Reserve Chairman Ben Bernanke has suggested that Congress outlaw counterfeit bills entirely.