Please FEED the Wedding Vendors!
Think not of my current pregnant status when I write this, but you really should provide a meal for your vendors. Yes, even the wedding planner!
 Your vendors– especially your photographer and your wedding planner could easily put in a 14 hour day on your event, with minimal breaks. Obviously the only time that we do get a break is when everyone is eating (Who wants picture of Aunt Earline enjoying the tilapia? What is there to coordinate when everyone is eating?) Unless you want your event staff to leave your venue to break for dinner, make sure that you make accommodations for them in your final guest count.
Your venue will more likely than not, be able to help you with this. For example, you can get your event staff meals at a deeply discounted rate or your venue may supply vendor meals. Typically the vendor meals consist of a sandwich, bag of chips and an apple. Your vendors, if offered a plated meal, are typically given the opportunity to dine in a separate area away from your guests.
Either way, be sure to discuss this ahead of time with your vendor. Some vendors request a meal in their contracts, others do not. However, nothing worse is than working a full day and finding out that you have to go another 4 hours without a meal! So be kind to your wedding vendor friends– if they can eat and regain their energy, it really shows in their work and performance.