Two-dollar bills always feel like funny money but in fact, they are legal tender.
The $2 bill was introduced in 1862 but then discontinued in 1966, which may have added to the confusion. But it was reintroduced 10 years later as part of the U.S. Bicentennial celebration.
Some people mark them “not a rare bill” to try to get people to spend them, and the gift shop at Monticello, the home of Thomas Jefferson, whose picture appears on the bill, gives them out as change to encourage their circulation.
There aren't that many: Less than 1 percent of all paper currency in circulation is $2 bills. But contrary to popular belief, they haven’t appreciated in value — the two-dollar bill is still worth … two dollars!