Stress-Free Holiday Party Shortcuts from the Pros

This "pro" is more of a tool than an actual person, but trust us, you'll be grateful for its help. Evite, the invitation and event-planning website, takes the head-scratching out of figuring out how much booze to buy for a party with its Drink Calculator. Just enter the duration of your party, how many light, average and heavy drinkers there will be and what kind(s) of alcohol you plan on serving, and it will tell you how much you should buy.