The pundits and talking heads are going at it 24/7, slicing the poll numbers six ways to Sunday, always with a mug of something close at hand. How to keep the data straight? Amp up with your own fresh brew, made in a classic Chemex for maximum deliciousness (and caffeine). Now back to CNN (Chemex ten-cup glass-handle-series coffeemaker, $40.95 at Broadway Panhandler, 65 E. 8th St., nr. Broadway; 212-966-3434).