Bills with George Washington's face

ONES

["Think of the smallest U.S. currency note."]

The clue "Bills with George Washington's face" leads to the answer "ONES" through a straightforward reference to U.S. currency. In the United States, the $1 bill features the portrait of George Washington. Therefore, "bills with George Washington's face" directly refers to $1 bills, which are commonly known as "ones." This clue relies on general knowledge of U.S. currency and the specific design of the $1 bill.