
Dear Mary: What is the etiquette of responding to save-the-dates?
Q. I have a problem with a much older friend who is slightly insecure and super-sensitive to criticism and I don’t know how to tell her an uncomfortable truth about her guest lavatory. The lavatory shaft has a coating of thick brown limescale, inches deep. She is not short-sighted so clearly both she and her cleaner think the lavatory is perfectly presentable. I am going to stay with her in London and you might think I should just buy limescale remover but, were I to do so, she would notice the transformation and would then feel she had been foolish not to have known that such a product exists. She
