There's so much to remember.  Here's a simple checklist to make sure you don't forget anything.

The Rehearsal

Facility
Caterer
Decorations
Flower Arrangements
Toasts

The Ceremony

Marriage License
Programs
Guest Book
Sound System
Unity Candle
Arch
Photographer
Wedding Rings
Officiant Fee
Altar Arrangements
Music
Candles
Videographer
Flowers
Bouquet
Ring Pillow
Flower Girl Basket
Limo
Marriage Certificate
Gratuities
Other Decorations

Stationary

Engagement Announcement
Wedding Invitations
Reply Cards
Napkins
Matches
Programs
Maps


A Complete List of Flowers

Bride's Bouquet
Centerpieces
Bridesmaid's Bouquet
Pew Bows
Boutonnieres
Throwaway Bouquet
Headpiece
Aisle Runner
Altar Arrangements
Corsages
Arch

The Reception

Location
Caterer and Menu
Tables and Chairs
Wedding Cake
Groom Cake
Cake Topper
Cake Knife
Punchbowl
Coffee and Tea
Alcohol/Bartender
Candles
Decorations
Centerpieces
DJ or Band
Serving Staff
Favors
Hors D'Hoeurves