S5, E23: When Lillian forgets to mail her sister Sally a birthday present, she asks Charles to deliver it to her at the car wash in Brooklyn. As part of the divorce settlement, Sally has taken over the car wash. When Charles arrives, Sally tells him the business has not been doing well for about a year. She was about to pay her income tax and did not have enough for money for the lease payment, and she is afraid she will have to close up. But she is determined to show her ex-husband that she can make a profit from the business.