A standard serving of wine is 5 ounces. This means you get 5 glasses of wine per 750 ml bottle; or 10 glasses of wine per 1.5 liter bottle of wine.
A liter of spirits is approximately 22 standard drinks. Guest preferences and your type of party/theme may affect the types of liquors needed.
Generally a serving of beer is 1 ‐ 12 oz. can/bottle so, one case of beer provides 24 servings. Kegs (⅙ barrel=53 12 oz. servings) (¼ barrel=82 12 oz. servings) (½ barrel=155 12 oz. servings)
basic mixers to include are Club Soda, Tonic water, Sweet & Sour mix, Grenadine, Lime Juice, Bitters, Dirty Martini Mix (Olive Brine), Coke, Diet Coke, Sprite, ginger ale, Redbull, Cherries, Olives, Fresh Limes & Lemons