Decide what you’re going to do before you lace up your sneakers – or pull into the gym parking lot. That’s according to New York Times columnist Charles Duhigg, author of “The Power Of Habit.” He says self-determination can override a lack of motivation. So tell yourself as you’re lacing up your shoes – “Today I’m running 3 miles.” Or as you drive to the gym, “I’ll start on the elliptical, then move to free weights.” Having a plan makes us feel in control. In psychology circles it’s known as “the internal locus of control.” It’s the feeling of being in charge of your life – versus feeling that outside forces are determining your course. And when we feel in control, we’re more likely to follow through.