Getting engaged is easy. Getting married is so much harder, and if you don’t have a clue where to begin, “The Pocket Idiot’s Guide to Wedding Etiquette” (Alpha, $9.95) runs the gamut of topics regarding weddings, wedding plans and the aftermath of the event. The “Idiot’s Guide” is meant to offer pointers and allow you to orient yourself along the way to wedded bliss with time-tested guidance and a full list of what a traditional wedding entails.