The dawn of a new decade presents the ideal opportunity to take stock of where you’ve been and where you’re going. You spend much of your life at work, so your job is a good place to begin your assessment. If you’re seeking an opportunity to increase your salary, a Master of Business Administration (MBA) is a sound investment. A Wall Street Journal survey found that 75 percent of MBA graduates switch careers, and that doing so can double their salary. An MBA sets you apart from an increasingly crowded and competitive applicant pool. There’s no real limit on what you can do with an MBA, because this specialized training can open doors in just about every field.