• not born yesterday

• familiarity breeds contempt

• easier said than done

• come to a sticky end

• please yourself

• it's an ill wind that blows nobody any good

• the more the merrier

• holier-than-thou

• it's and ill wind that blows nobody any good

• a figure of eight

• that figures

• give him heart failure

• round figures

• as yet

• funny peculiar