Did you know that some $1 bills could be worth a lot more than just a dollar? If you have bills with specific serial numbers, you could make hundreds or even thousands of dollars by selling them to a website called CoolSerialNumbers.com.

Here are the types of serial numbers they’re looking for:

– 7 repeating digits in a row (e.g., 09999999)

– 7 of a kind (e.g., 00010000)

– Super radars (e.g., 01111110)

– Super repeaters (e.g., 67676767)

– Double quads (e.g., 11110000)

You might want to check your wallet because something as simple as a crumpled $1 bill could turn out to be your lucky ticket to some extra cash!