Formals: Build Off the Bride and Groom
There's a popular format for creating all your formalshave the bride and groom in the center, and have them stay put. They don't moveinstead you have groups of other people (bridesmaids, groomsmen, the best man, maid of honor, parents, grandparents, etc.) move in and out around them. Use the bride and groom as building blocks and everything will be much easier (well, as far as posing your large groups goes anyway).