Mine says: "Hello you've reached the _______ family and _________ Day Care, we cant come to the phone right now, but if you leave a message, we'll call you right back!
That's it. Simple..to the point..yet "warm and cozy. It is nice and you are more likely to get a message left, if you state who you are and your day care name. Think about it, some people may not realize your an inhome daycare, they may think they posibly got the wrong number...and you loose a client. Plus I think it sounds cute to include your fam and the daycare together, as if its a family/day care. just my opinion.