This post brought to you by Walmart. All opinions are 100% mine. Having a baby is expensive. And I'm not even talking about the hospital bills! I have four kids now, and have learned little tricks to help me save money on the things babies need. One of the best tricks I have learned is to do my research on the things I want, then shop around to find the best prices. Babies need a lot of things: diapers, clothes and proper nutrition. Those ...