Put together a wedding program and plan on giving a copy to all the members of the wedding party. Make sure that you confirm the times with all the vendors involved on your wedding day. You won't believe how confused you get on the Big Day as to where you should be at what time.
Assign friends or family members to assist with pending items
Break-in wedding shoes at home
Have final conversations with Caterer, Florist, Photographer, Band/DJ/Entertainment, Videographer, Transportation Company, and Wedding Planner
Give final guest count to reception facility and caterer (if different than the one provided by the reception hall)
Start shopping and packing for the honeymoon - Buy all necessary items that might require you to leave the house the day after the wedding.
Purchase traveler's checks and calling cards appropriate for your destination
Designate someone for the Money Box and gifts during the wedding
Finalize seating arrangements and place cards
Groom - Pick up your tux and try it on to ensure proper fit. (Do not wait until the day to do this!)