Drew Barrymore

'Charlie's Angels' star Drew Barrymore uses a calendar to let her children known when she'll be away so they don't suffer from attachment issues.

Drew - who has two daughters, Olive, 11, and Frankie, nine, with her ex-husband Will Kopelman - said: "I wanted to give her a tool, so she could understand and gauge life when I am working. That way she can see that I am gone at first, still away in the middle, and then coming back towards the end. She now has a good sense of my geographic place from the globe. She knows when I am leaving and coming home."