A small list of things to ensure your big day has no bumps in the road:

Aspirin and Gravol.

A headache is a good possibility and nerves could cause an upset tummy, make sure you have these two things stocked up

Something to eat.

Maybe prepare a nice cheese and cracker tray the night before, not just for yourself, but for your attendants too. It would also be nice to have one available for the groom and groomsmen. The one thing that people always forget to do is eat, so finger snacks are probably more practical.

Extra makeup.

This is especially important if you are not having your makeup person with you all day. We have no doubt that you will want to touch up your makeup several times through the course of the day. Make sure you have powder to get rid of shine and lipstick.

Stain remover pen/wipes

Just in case a nasty spot suddenly appears in all too wrong a place on your dress. And right before that all important picture.

Q-tips and tissues.

The makeup is going to run, you're probably going to cry. Be sure you can touch up easily.

Nail Polish and a Nail File.

Gee my nails look great! until you break one. Don't leave it to chance, be prepared.

Extra pairs of nylons and garter.

This is particularly important if you are planning the garter shot, which in most cases comes closer to the end of the evening. You're fresh pair of nylons you put on in the morning could be a nightmare by the evening, especially if you are wearing crinolines that snag the hose.

For your breath

You will be kissing people all day, remember to keep these close

For your dress

Static Guard. You may not need it, but your wedding party might.

For your hands

Hand lotion/sanitizer.

Safety Pins, Masking Tape, Stapler, Small Mending Kit.

Mirror

Small compact or hand mirror to go along with the makeup.