Send invites with very little detail of the big day - 1.00p.m wedding then 7p.m reception.
When they arrive at 12.45p.m for the 1.00p.m wedding, stuff them all into a tiny, heated room while they peruse the wedding schedule that you have left on their chairs telling guests that it is, in fact a 1.30p.m wedding. Then be an hour late for the rearranged 1.30p.m start.
Have a photographer take all of guests to freezing outdoor location in city centre and make them do crazy poses in front of all and sundry. Then bugger off for 5 and a half hours to a random location for more photo's while guests are left in your house with no drink and cold coleslaw platters. Make sure these guests don't know each other and have very little in common. Also, make sure your heating is on and they can't open the windows in case seagulls come in to eat the coleslaw platters.
Have guests arrive at random very expensive hotel after 5 and a half hours (knackered) and go for a nap/shower while they all sit downstairs like fannies phoning the evening guests and telling them to hurry up because that evening 'do that you all thought was supposed to be just a buffet and some dancing is actually a huge sit-down meal that is 5 courses long for just the starter and two for the main. It's ok though - your napping tie and showering has meant that you need hair and make-up redone anyway, so plenty of time for them to arrive!
Start main meal of the day at 9.00p.m and end it at 10.30p.m then make guests sit through long and arduous cutting of cake/first dance/ speeches.
Have a swing band play while you all eat so you cant talk to the random you've been placed next to. Then have a mad random scary looking bellydancer come and dance with everyone at about 11p.m. After they have just eaten huge meal. [sick emoticon] Also, make sure that starters are all vegetarian, but main is meat only. 
Put all the single folk with the random people you didn't really want to invite, but had to because otherwise they threatened suicide. Your good single mates will love you for it.
Make sure everyone knows how much you spent on your dress and scream at anyone who comes near you all day, just in case it gets spilled on/ripped/stood on by accident.
Have your birthday on same day as your wedding. So after they have watched you cut wedding cake/have first dance/eaten lavish huge eal, they can watch you cut your own birthday cake and sing happy birthday to you 3 times.
This all happened to us this week. At the one wedding!!! Grr!