"Tiger Airways said it will charge customers for checking in at the airport, beginning next month. If you pre-book online your check-in fee will be $10. Lob at the airport, join the queue, then you pay $15. Tiger is also lifting luggage charges - 15kg will cost $20 instead of $15 and 25kg will set you back $50, up from $45. That's on top of the check-in fee, meaning that taking a bag will cos