A new series of studies from researchers at Michigan State University indicate bosses who were supportive and set clear expectations can effectively motivate their employees, even if they weren't described as "transformational leaders" or having "grand visions."

"Stop pushing yourself," your angry four-inch tall shoulder-Devil whispers in your ear. "Let's blow off the day and hang on the couch. You'll never amount to much anyway." We all have that inner voice - the negative one that whispers fear, guilt, and laziness into our ears.