The 42-year-old actress said she takes it upon herself to organise the differing schedules of her husband, Oscar-winning actor Ben Affleck, and their three kids, reported Contactmusic.
"There's nothing like brain surgery about it - it's all logistics and schedules and remembering to pack lunches, and who has a karate class after school, and thinking about what food we already have in the refrigerator, and what I need to buy more of to cook dinner.
"I was writing cheques this morning to various people who have done things around the house and I started to laugh because I suddenly thought, 'I bet Ben doesn't even know this person's last name, let alone how much we pay them.' But that's how we divide the jobs," she said.
"There's always a ball up in the air and you just hope you manage to get your hand out to catch that ball before it splats to the ground.
"I'm constantly thinking, 'OK, I have this kid starting pre-school and that kid starting kindergarten this fall so I need to be home for that chunk of time, and my husband is going to be doing this at that time, so I need to be home then'," she added.