“Monday is an awful way to spend 1/7th of your life”

“Monday is an awful way to spend 1/7th of your life” is a popular one-line saying that has been printed on many posters. The saying has been cited in print since at least 1977.
       
 
27 October 1977, San Patricio County News (Sinton, TX), “Aside” by George F. Rigotti,pg. 2, col. 6:
...we just have to agree with this one: Monday is an awful way to spend approximately one-seventh of your life.
 
7 June 1978, Snyder (TX) Daily News, “The SDN Column,” pg. 1, col. 1:
The cactus patch philosopher says Monday is an awful way to spend one-seventh of your life.—WACIL McNAIR
 
16 April 1979, Greensboro (NC) Daily News, “Today’s Chuckle,“pg. 1, col. 6:
Monday is an awful way to spend one-seventh of your life.
 
Google Books
The Complete Idiot’s Guide to Grammar and Style
By Laurie Tozakis
New York, NY: Alpha Books
1997
Pg. ?:
Monday is an awful way to spend 1/7th of your life.
 
Google Books
22 Keys to Creating a Meaningful Workplace
By Tom Terez
Holbrook, MA: Adams Media Corporation
2000
Pg. 7:
These four bumper stickers pretty much sum up how many people feel about work:
 
Monday is an awful way to spend one- seventh of your life.
 
Twitter
Theresa
‏@ShortyTREE
“Monday is an awful way to spend 1/7th of your life” Just a quote I read & thought I’d share!  Morning everyone…
6:21 AM - 18 Jun 2007
 
Twitter
Bill Tanner
‏@tanner
Thought for the day: Monday is an awful way to spend 1/7 of your week.
8:12 PM - 4 Aug 2007
 
Twitter
Miguel Lopez
‏@mklopez
Monday is an awful way to spend 1/7th of your life
7:21 AM - 27 Aug 2007
 
Google Books
5,000 Great One-Liners
By Grant Tucker
London: Biteback Publishing Ltd.
2012
Pg. ?:
Monday is an awful way to spend one-seventh of your life.