A Cranbourne woman won $1.2 million after switching her TattsLotto ticket a few moments shortly before the drawing.
A Geelong man also claimed $1.2 million with a last ticket change.
According to reports, recent Saturday Lotto winners in Hornsby kept their jobs straight away.
General guidance for lottery winners suggests waiting before coming forward and getting professional advice.
The Lott shared tips on Monday from a actual division one winner on how to navigate a major prize.