Chapter 70 of Amy Vanderbilt's

New Complete Book of Etiquette is titled, "The New Resident in Washington."  I am not making this up. 

Amy Vanderbilt's New Complete Book of Etiquette: The Guide to Gracious Living (1967)

If I were writing a book on etiquette-- which I am certainly not qualified to do-- it would not have occurred to me to include a chapter on what to do if one is a guest of the President of The United States of America at 1600 Pennsylvania Avenue.

Just passing this along should any of you receive an invitation to the White House in the coming years-- come what may.