Newborns need to bond with Daddy as much as Mommy. If you're on maternity leave while he's at work, schedule a day for him to take off and be the primary caregiver. He'll get a chance to bond with the newborn, and you'll have a day to catch up.
If you're both at home, though, beware! Daddy can be a good caregiver, but only if Mommy lets him get there first. Use your day off to ignore Daddy's caregiving techniques (let him develop them) and, instead, take a long shower and nap. You'll have to force yourself to relax this way, but if you do, you'll be a happier, more refreshed mommy tomorrow.