When you have a Royal Wedding you a need a Royal set of rules to maintain the pomp and circumstance.

A 32-page protocol guide has been issued to each Royal wedding guest. Here are the DO's and DON'T's according to the NY Post and public relations exec Catherine Saxton, who has worked with the royal family:

DO
* Look sharp. For women, dresses are a must. Don't wear white. Hats or a fascinator (festive feathered hairpiece) are a must. Men should wear suits.

* Be charitable. "Family and friends will give gifts," says Saxton. "Everyone else will donate to one of the 26 charities selected by William and Kate." On the list: Irish Guards Appeal and Army Widows Association.

DON'T
* Be late "They have almost 2,000 people to seat so they will need a lot of time," says Saxton. The Queen is the last guest seated.

* Tweet "It would be very foolish to try to sneak a picture," Saxton says. No tweeting either.

* Drink too much "Everyone will be offered a glass of wine or champagne; maybe a second," Saxton says. "You are rarely offered a third."

Was there an embarrassing moment at your wedding that made you wish you had sent out a of 'Do' and 'Don't' list?

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