After being expelled from school at the age of 14 he took on a variety of jobs, including message boy in the printing trade, apprentice electrician, apprentice baker and builder's labourer.

BBC: Michael marra

Customers choose their card design, personalize it with a message or their own images and then outsource the printing, addressing, stamping and mailing to the Punch Street team.

FORBES: A Greeting Card Startup Inspired By 'The Wire'? It's All In The Game

Travelocity and the FAA recommended printing out a copy of the reservation receipt, which could be an e-mail message, although it was unclear what would constitute a valid receipt.

CNN: FAA imposes restrictions on e-tickets