Take it slow! Remember on the day of your wedding to stop, breath, look around and enjoy the great day you are having!
Also remember to actually eat a piece of your cake, other than that one bite you will share with each other.
Maids of Honor you could try packing a picnic lunch for the bride and groom during the reception so in case the bride and groom get too involved in the reception and the fun that they do not have time to grab a bite to eat. Be sure you pack a piece of the wedding cake in their picnic lunch also.
Try not to have friends and family do work that should be hired such as taking pictures, planning, video recording, or what not as this may lead to delays in your enjoyment and regret later on. It is best to get an outside person to help and not let normal human emotions to get in the way.