• Concessions: Gift shops, barber shops, and beauty salons.• Cash discounts earned: Discounts from creditors' accounts for payment within the discount period (does not include trade discounts, which count as a deduction from cost of goods sold).• Electronic games and pinball machines.• Forfeited advance deposits and guaranteed no-shows.• Service charges: Charges added to customer's account for service.• Interest income: Interest from moneys invested.• Salvage; Revenue from the sale of old and obsolete items.• Vending machines.