Seattle-based Alaska Airlines announced it will go cashless in the cabin beginning August 5, accepting only major credit or debit cards for all inflight purchases. Basically, flight attendants will use a hand-held device to charge credit and debit cards. The airline has been using the point-of-sale devices on its transcontinental routes for more than a year. You may want to pack a lunch for your child, if they're traveling alone. Who am I kidding; don't most 10 year olds carry plastic with their cellphones and gameboys?