Pastor John Piper recently answered a question on how he handles spiritual training in the home. It's short and good, especially this part:
"And then when we put them to bed, we tucked them in, blessed them with
The Lord bless you and keep you.
The Lord make his face to shine upon you and be gracious to you.
The Lord lift up his countenance upon you and give you peace,
and joy, and hope, and love, and a good night's rest,
and someday a godly husband. (Talitha will always laugh when I say this last line.)
And then I sing a song for Talitha. And then I give her a big hug. There is a very definite routine that we walk through."
Read the whole thing.