One of them pertains to date night.
"We have a thing called white T-shirt night and it's when you wear jeans and a white T-shirt and you go on a date," she told Comsopolitan magazine. "Nothing fancy, it's just something that you love to do."
Kunis, 30, went on to explain that she and Kutcher, 36, are content to spend time at home, though they also like "bowling or dinner or going to a cheese shop and have some wine or walking around. I think that's just the best thing to do."
She's equally down-to-earth about how she sees herself. When asked by the magazine if she looks at herself as "sexy," Kunis demurred.
"It's just not [one of] the top 40 adjectives I would use to describe myself," she said. "I do see myself as confident, but if someone sees me as sexy I'm not going to argue that and say 'No I'm not! You're crazy.' I'll just say, 'Thank you,' politely."
Surely Kutcher would disagree.