71.  Most child-development experts say being naked in front of your offspring after they reach a certain age is a bad idea.

72.  Mothers of a certain age would love some of the shows, especially those at the Lawrence Welk Champagne Theatre.

73.  Mention "Impala," and people of a certain age get wistful.

74.  NAVASKY: Which otherwise would be inappropriate for people over a certain age.

75.  My friend Ida Bernstein, a woman of a certain age, often walks to 42nd Street to catch a downtown bus.

76.  NEW YORK _ New Yorkers of a certain age will recall the Museum of Science and Industry in the Daily News Building and later in Rockefeller Center.

77.  Nobody had ever explained that when she reached a certain age, her body would begin to change in preparation for the end of her childbearing years.

78.  Now, when a sister reaches a certain age and she's no longer working, she receives the minimum amount of Social Security.

79.  Now we are ladies of a certain age, sharing digs, and working together most every day.

80.  Of a certain age, she went to school when whole classes lined up alphabetically.