We are planning on having a couple of different choices of hosted cocktails for our beach themed wedding reception. We know we want to offer sea breezes and sex on the beaches as hosted cocktails. We are debated on adding a third, possibly a Long Island iced tea or a sangria. We will be purchasing them pre mixed in gallons, we are told each gallon has approximately 35-40 servings. How many gallons do you think we need for approximately 100 guests? People will be able to purchase any other drink they may want at the bar. We will be talking about this With our planner, I was just hoping to get an idea before going into our meeting. Thank you