My husband wants to know this, so I told him I'd ask tPF, cause I told him y'all know it all. (Don't let me down here. people). For instance, he received a thank you letter that was so nice and complimentary - and must have taken a long time to write - that he felt like he should thank the person for the letter she wrote. He didn't know the 'etiquette' or proper thing to do in this case. It was the kind of letter that seemed to both of us that the proper thing to do was to say something back. I'll tell you later what he did, but the question is - Is it okay to thank someone for an especially nice thank you note/letter?