So you have had a hard day and you have lots of things coming at you – work, deadlines, bosses, personnel issues, organizing a family – and you feel overwhelmed with it all. Your brain is about to explode. Feel like this often? I do at times. How does it make you feel to know that, according to famous Harvard professor and psychologist William James, the average person uses only 10 percent of his mental power? Wouldn’t it be nice to use more?