hey lateral solutions are the most fun. some other obvious ideas: - only the serial numbers matter not the physical bills, write them down on a ledger with an

hey lateral solutions are the most fun. some other obvious ideas: - only the serial numbers matter not the physical bills, write them down on a ledger with an index - bill reading machine with simple ocr, scans all serial numbers into a db - solve the opposite problem: given the dj's serial number, is it possible to track down that particular bill? Arbitrage the opportunity by running the same contest in other states for a lower sum