$5000 Fine
Currently flying DEN-SAN and the flight attendant stopped 3 people during boarding for having a suitcase, backpack and belt bag. She told them they had to put the belt bag in the backpack or suitcase or it could be a $5000 fine for both of them if the FAA caught them with more than 2 items. I’d never heard this!
Edit - I know the 2 item limit is a FAA rule, I’d just never heard a specific amount for a fine.