In this era, it's quite common for both spouses to have careers they'll continue with after their children are born. This means finding daily child care until the kids are of school age, which can chip a big chunk out of your monthly take home. Daycare centers are generally cheaper than nannies, but finding one that's close and also fits your child-rearing philosophies may be challenging. A way around this is to find other parents in your neighborhood with the same challenges and set up a babysitting co-op or a nanny share. You can also ask your employer for flexible work hours or permission to telecommute when possible so that you can be home more during the day.