SWISS has started offering electronic tickets (e-tickets) for all its services from June 1, making paperless tickets the norm for all travelers throughout the SWISS network. E-tickets have a host of advantages over their predecessor aside from not being lost or stolen, they can also be sent electronically at ultra-short notice. An e-ticket also enables the customer to check in conveniently online and print out a boarding card at home or at the airport self check-in machine. An e-ticket can be easily rebooked and is available wherever the customer is located - eliminating the waiting time or misplaced tickets. E-tickets can now also be issued for combined bookings with more than a hundred other airlines. SWISS has been one of the worldwide pioneers in adopting the e-ticket option, especially in developing combined e-ticketing. Paper tickets issued before June 1, 2008 can continue to be used up to May 31, 2009.