The work Mihaly Csikszentmihalyi has done on creativity demonstrates how highly creative people use strict routines to free up their minds. "Most creative individuals find out early what their best rhythms are for sleeping, eating, and working, and abide by them even when it is tempting to do otherwise," Mihaly says. "They wear clothes that are comfortable, they interact only with people they find congenial, they do only things they think are important. Of course, such idiosyncrasies are not endearing to those they have to deal with.... But personalizing patterns of action helps to free the mind from the expectations that make demands on attention and allows intense concentration on matters that count."