Our wedding is a year away so I have lots of time to figure out my headcount, but I was just curious what other people's experiences have been. Did you/do you plan to underestimate for your final head count to your caterer? We are having a stand-up buffet - no seats, no plates. How will my caterer REALLY know if my head count is 100% accurate? I feel like I will be able to give her a slightly lower number to account for children (who obviously won't be eating much or drinking period), non-drinkers and no-shows. Our price per person includes food and open bar so obviously is really high! Our guest list is growing by the day so I'm trying to estimate how much I may need to cut elsewhere it my budget.