The most efficient form of childcare would be to invest in a good day care center. While cost would be the main problem, the pros outweigh the cons. In daycare centers their are children of many different personalities, your child being around these personalities helps develop their social skills. Another reason would be rules, while rules are placed everywhere, daycare centers specifically for children focus on developing skills for many things like following rules, sharing, effective communication skills, potty training, and the list exceeds. To help your child get a early start dont give them to a nanny from 9-5, let them explore their own personalities surrounded by kids their age.