How do I tell my family about the layoff?

I have been leaving the house at the same time each day so my kids do not notice. I have read a lot of threads here and could not find my exact situation. I feel ashamed even though the company cut a whole team. How did you handle it?

Kids often pick up more than you think. A short, calm explanation helped mine feel secure.

Do not wait until a bill surprises them. The longer it goes, the harder it gets.