Dave Crenshaw has appeared in TIME magazine, Forbes, SIRIUS XM Radio, and the BBC News. His first book, The Myth of Multitasking: How ‘Doing It All’ Gets Nothing Done, has been published in six languages and is a time management best seller. His latest book, Invaluable: The Secret to Becoming Irreplaceable, is also an organizational behavior and motivational bestseller. Dave has helped thousands of clients worldwide harness chaos, get focused, and build invaluable businesses. www.DaveCrenshaw.com/exercise