It began in December 1967 when five secretaries at a ventilation and heating company volunteered to work an extra half hour each day without pay to do their bit for the flagging economy.
Earlier reports have said that the University of Washington is planning to offer credit for Coursera courses, though students will likely have to pay a fee and do extrawork with a U. of W. instructor.
Some doctors worry that, even if such charges discouraged unnecessary visits and raised money to payfor more doctors (and pay doctors more), collecting them would involve a lot of extrawork.