Nicole Richie and Joel Madden
06/11/2008 at 02:00 PM EDT
and Joel Madden are balancing parenthood and coupledom by carving out time for dinner dates.
"We go out like once a week," Joel Madden told PEOPLE at the opening of SugarFish sushi restaurant in Marina del Rey on Monday night. "We take a night to ourselves once a week."
The couple also trade off baby duties. "I'll stay home with the baby one night and then she'll do the same – we do that a lot," says Madden.
While Richie readily admits her life now revolves around baby Harlow
, she and Madden still hit some of their favorite spots together.
"On our nights off we always go to Nozawa" sushi in Studio City, adds Richie, "so it was really special to be able to come here tonight."
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