Another unforeseen expense? Feeding your wedding day crew. Before you sign the contracts, make sure you're not required to serve the same meal to your vendors that guests will receive. Otherwise, you could be paying for 20 additional lobster tails. Choose a less expensive (but equally hearty) meal for them instead. You will have to let your wedding caterer know a couple of days before the wedding exactly how many vendors you need to feed (don't forget photography assistants and band roadies) and what you want them to serve.