We all want to save money and protect the environment by recycling, so it makes sense to use hand-me-downs for your child. After all, babies go through a ton of stuff in a short time. These few simple guidelines will help you go the secondhand route safely and figure out if, for example, the high chair in your sister's attic has any dangerous wear and tear, or that crib on Craigslist fails to live up to today's safety standards.