I'm interested in using CDs with our future LO, but don't know much about them. DH is open to having a conversation but not super keen on the idea. I'll be a WOHM and LO will be attending daycare (not sure if it'll be our family, a nanny-share, an in-home, a facility or what). From my preliminary research I like the money saving (especially for 2+ LOs) and the environmental factor (we'd be washing our own at home).

Tell me more about CDs! What are the basics I need to know? What can I tell DH to get him on board?