As the bride, show up an hour and a half late to the church, leaving all the guests sitting and sweltering in the heat - very much appreciated by male guests in full suit and tie. Make sure the wait is worth it by having a nice long ceremony as well.
Bugger off to take pictures for hours on the way to the reception venue. Have guests arrive at venue way before you and wait yet again before getting any drinks.
Bearing in mind the original start time of 1pm (+ time to get to church), make sure the buffet is not served before 8pm. That way even guests who were savvy enough to have had a huge breakfast just before setting off in the morning will be hungry for the meal. And make sure it all runs out before the last few tables get a chance to be served.
Then it's time to entertain your guests with the speeches: father of the bride, groom, best man, father of the groom, usher #1, usher #2, usher #3, bride, maid of honour, bridesmaid #1, bridesmaid #2, bridesmaid #3, mother of the groom, mother of the bride... All these people are bound to be marvellous orators and springing this on them at the last minute is sure to elicit witty, original, non-repetitive speeches.
So no one feels left out, then open the floor to anyone else who might want to say a few words: Aunty Laverne, Grandma, Cousin Angus... I can't tell you who came next, as we then decided to call it a night!
This of course is on a Sunday - but not really a problem as there is no alcohol served anyway.
This was all the same wedding by the way. Despite all this, I still came away with a warm fuzzy feeling - the couple were obviously in love and it's always nice to see.