I do 2-3 months in advance. I've received emails re: care when the child now is only 4 months..LOL I told them that's I can't promise that I'll have an opening but I'll answer any questions they have and tell them to feel free to reach out to me again 2-3 months before care is to start and we will go from there.

I don't want to burn any bridges and really answering a 5min email isn't going to hurt. Word of mouth is BIG and if they don't use me maybe a friend of theirs can.