Here is a few tips for that special day...
Have fun! Your vendors will help your day run smoothly.
Make sure that you eat. So you can enjoy the entire evening.
Let your Bridal party help you with everything. They want your wedding day to be perfect also.
Talk to all your vendors about a week or so before the big day so you can be assured everything is on schedule.
Have your maid of honor or someone else have a little bag with emergency essentials in it just in case. (Aspirin, safety pins, needle and thread, chapstick, etc.)
If you have a wedding coordinator make sure they are in contact with your vendors on the day of your event to ensure a smooth exciting day.