Related Clues:
- Beholden letters
- Poker game memento, maybe
- Debtor's acknowledgment
- Written debt acknowledgment
- Personal marker
- Note left after stealing your roommate's beer
- Letters written by a shy guy?
- Evidence of debt
- 'Next round's on me'
- Informal repayment promise
- Note promising notes
- Bettor's letters
- Tapped-out person's letters
- Informal vouchers
- Debt, in short