• Remember to not run out of flash batteries
• If your flash can be used remote, have a helper to hold it off to the side on some shots
• later when dark be careful not  to point the flash right in faces
• Be stern with your set ups. Do not let the crowd control you.
• After the mandatory entering to the cake cutting, be sure to work the crowd for candid shots.
• Never shoot at people eating food.
• Try not to show cluttered tables.
• If in doubt about focus, take 2 shots of everything. Or more.
• If you know how to read your histogram, use it  instead of just the lcd image
• Watch the legs on poses. Keep them tight to bodies.
• Sort people into size groups. Do not be timid to move people around. If they want good shots, they have to be patient.
• About half way through, make sure you are  doing good with your memory cards and batteries.
• Take a review of your images. You may find some that are just not worth it.If you  delete some it gives you more for some fun stuff at the party.
• Poses include many of bride and groom.
• Both families separate. Families together.
• The children
• Table pieces
• Quiet location for just the bridal party
• Be careful around trees with the shadows, they can do funny things to the faces and clothes.
• Do get some  with sunlight in hair if it is possible.
• I could think of more things that I forgot at the couple of wedding I shot..
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"The happiness of a man in this life does not consist in the absence but in the mastery of his passions."