CLEAN UP YOUR ACT
Use alcohol-based hand sanitizer so that "your colleagues associate the smell of alcohol with your obsessive-compulsive disorder," says Kaye, "and not your predilection for hitting the hard stuff." Suggests Morgenthaler: "If you can sneak away to the bathroom and do a full toothbrushing, hand-washing, and face-washing routine, you'll be ahead of the game."
Stay away from red wine at all costs. It will stain your teeth and give you away to the boss. Heavy liquors like tequila, Scotch, and bourbon will leave a stench that's hard to rid. "Go with the lighter spirits—clear rum, gin, and vodka," says Morgenthaler. White wine works well, too, though avoid a buttery Chardonnay—it'll make your teeth look glossy.
MUDDLE YOUR BREATH
While at lunch, Morgenthaler suggests munching on something "garlic heavy" followed by fruit-flavored gum rather than mints. "Gum's more active," he says, "and it'll last longer." In lieu of food, Kay says, go for a caffeine fix. "Cigarettes and coffee," he says, "are the best complement to—and mask for—an unrestrained love for daytime cocktails."