like money in the bank

"What Mr. and Mrs. Kesler both learned is that children have a remarkable capacity to handle their own problems when we begin to take care of our own. The work they each did with their own families was like money in the bank for Billy and his two siblings, because children are the carriers of whatever has been left unresolved from the generations that went before" (p. 150).

 - from "The Dance of Anger" by Harriet Goldhor Lerner