I have found a lot of alcohol calculators, but am having trouble figuring out how much I'll need in the way of mixers. Sweet and Sour, Cokes, whatever else is a common mixer. I'm thinking for my 100 person guest list, about 200 beers, 2 bottles each of rum, whiskey, tequila, vodka, and about 8 bottles of wine. That's about what I've come up with, knowing my guests. I can't figure out how much I'll need for mixers, though. HELP!!