Doonesbury by Garry Trudeau for April 10, 1990
Transcript:
Zonker: Morning. Fellow spaceship earthmate! Mike: I can't believe you woke us all up at dawn! Zonker: Early to rise, early to bed! And that means energy conservation! Especially with these new screw-in-fluorescents! These babies are a bit expensive, but they last 10,000 hours and cut energy consumption by 75%! Over the long haul, they'll save you around 30 bucks a pop! Oh, by the way, I changed the shower head, too!