What would Emily Post Do?

My next purchase for books will have to be the 18th edition Emily Post Etiquette book.  I am so traditional when it comes to etiquette.  I prefer Anna's great-great grandmother's rule of thumb for etiquette, instead of the new modern way of doing things.  Whats the saying  "When in Rome you do what Romans do, so I must indulge.  Anna was on the today show promoting the new book, check out some modern tips for dating, business, and at the dinner table.  You can watch here, http://www.today.com/video/today/51630751#51630751.