Related Clues:

• Unspecified people
• Low digits
• Till fillers
• Wallet wadding
• See 33-Down
• It takes two to make eleven
• Till section
• Some wallet items
• Cashier's stack
• Binary digits
• Snack machine inserts
• Column next to the ones
• *Bills ... column ... binary code
• Small change?
• Billfold fillers