Career
The agency went on to do memorable work for Apple Computer, including the Macintosh "1984" Super Bowl commercial. He was born in Chicago, Illinois. Day originally founded an agency called Faust/Day with Tom Faust.
When Faust left, Day called Chiat to discuss a merger with Jay Chiat & Associates.
Day retired from Chiat/Day in 1986. He later did business development at Keye/Donna/Pearlstein.
Day had two sons, Cameron and Bill, who also work in advertising. Guy died in January 2010 in Pflugerville, Texas.
