... After every activity you accomplish in a day, take 30 seconds to ask yourself how it made you feel. Did it cause your energy to go up, down or to stay flat? "If it's flat or down, write down the name of the activity in one column in red pen," says James Clawson, Johnson & Higgins Professor of Business Administration at the University of Virginia and co-author of the energy-management book Powered by Feel. "If it's up, write down the activity in another column in green." Do this for one week straight. Then look at the results. ... All of us run on various int...