Decorations

There are no "must have" decorations, they're all optional. Some decorations that people forget about could be cake table or guest book table decor. They're not decor, but pens or markers for the guest book are often forgotten.

I forgot about decor for wine barrel we used as a little table during the ceremony.

Things I forgot about before being reminded by this forum:

cake topper, cake serving set, champagne flutes for toast, flower girl basket w/ flowers, ringbearer pillow

Not all of these are required but of course may be depending on what your wedding will look like!