There was once a young couple who was very close to the Bostoner Rebbe and Rebbetzin. The couple was also close to Ha-Rav Yosef Solovietchik, who was Rav in Boston, along with teaching at Yeshivat Rabbenu Yitzchak Elchanan. The couple was once invited to Rav Soloveitchik's home for a Shabbat meal. The Bostoner Rebbetzin asked the young woman: What did you see there? She answered: It was quite similar to what you do but there was one difference: They use disposable utensils. The reason is that Rav Soloveitchik's wife wants to participate in her husband's Motzaei Shabbat class, and if she needed to wash dishes, she wouldn't be able to do so. The Bostoner Rebbetzin went to her husband and told him this practice of Rav and Rebbetzin Solovietchik and asked: I am willing to eat on China every meal, but we have 30-40 guests every Shabbat and I wash dishes until Tuesday. Why can't I use disposable dishes? The Bostoner Rebbe said: You can use disposable dishes. The Bostoner Rebbetzin said that she is so grateful to this young woman who told her what she saw at the house of Rav and Rebbetzin Soloveitchik (The Bostoner Rebbetzin Remembers pp. 165-166).