A former McKinsey partner shares 4 techniques to finally get your email inbox under control

Take a moment to reflect on how much time you spend in your email inbox each day, compared to how much time you spend actually working. How many of those emails even yield positive results?

Sevenshift CEO, McKinsey senior adviser, and former McKinsey partner Caroline Webb says that if you're like most people, you're probably wasting hours every week. Thankfully, she has some solutions, she writes in her book "How to Have a Good Day," a collection of career best practices she's learned in her 16 years as a consultant.

Here are four simple techniques that, if used correctly, can profoundly change your workflow.