For A Change Meaning

Example : 1889, Jerome K. Jerome, Three Men in a Boat (To Say Nothing of the Dog),  He had had a hard time in the City, so he explained. Harris, who is callous in his nature, and not prone to pity, said:  "Ah! and now you are going to have a hard time on the river for a change; change is good for everyone. Out you get!"1913, Joe Hill, There Is Power in a Union,  If you've had "nuff" of "the blood of the lamb,"  Then join in the grand Industrial band;  If, for a change, you would have eggs and ham,  Then come! Do your share, like a man.1919, W. Somerset Maugham, The Moon and Sixpence,  "I've supported her for seventeen years. Why shouldn't she support herself for a change?"1931, Robert E. Howard, The TNT Punch (alternate titles: The Waterfront Law, and The Waterfront Wallop),  "... But I ain't all softness and mush--feel this here for a change!"  And I closed the Kid's eye with a smashing left hander.1993 February 17, Bill Clinton, speech, William Jefferson Clinton's First State of the Union Address,  I'd like to use that Superfund to clean up pollution for a change and not just pay lawyers.