Party hard and late the night before your wedding.
Plan to be getting into your gown at home about the same time the ceremony is scheduled to start at the church.
When the photographer makes a picture suggestion, say OK then walk away and forget it.
Arrange for the wedding party to keep well scattered so each member has to be tracked down for each picture.
Be sure to have a bridesmaid or best man block the camera view of your face during the ceremony. It will be impossible to move the person during the ceremony and you will be safe from appearing in any of the ceremony photos.
Have the first bridesmaid come down the aisle at the same moment that the groom is entering from the side. She can probably slip in unnoticed while the photographer is catching the groom's entrance.
Although family pictures are best done at the church before people get scattered, they can be avoided entirely by not telling the families in advance to stay for them.
Be sure to have a guest with a camera follow the photographer around to distract people being photographed with "what a nice picture, look over here"! This can easily extend the formal photography sessions by at least three times.
At the reception, the photographer will be in the room almost all the time. He may leave momentarily, usually to get a posed picture of somebody who was earlier unavailable. Take advantage of these moments when he is out of the room for special events like cutting the cake or tossing the garter or bouquet.
If you are dancing and see the camera pointing at you, quickly turn your head away or dance around behind another couple.
If pictures are planned in an outdoor location, select a spot with an underground automatic sprinkler system timed to turn on during the photo session. The sprays of water rotating from all directions will cut the session short. People will run, not walk, to the reception hall and save a lot of time.