Sippin' on milk and juice

Thanks to Slate's Chip Brantley and his very scientific experiment using 22 parents, their kids, and many, many sippy cups, we now have an answer to the age-old question, which sippy cup is best? Nalgene's Grip-n-Gulp bottle wins the prize for best cup, scoring a mind-blowing 50. That's a perfect score, folks. To satisfy those parents worried about leaching BPA - I am one of 'em - only BPA-free cups were tested. So, go forth and buy sippy cups, people.