For years, we've all heard the advice about drinking eight, 8-ounce glasses of water every day. It's apparently life-changing. I'd never managed to get in that amount of water, except maybe on days when it's really hot and I've been really thirsty. In any case, I never kept track. I'm old-school and only drink when I'm thirsty. But I kind of wonder if I shouldn't get more water every day, so—though recent studies have found that so much water isn't always necessary—I decided to give it a try. For the last four weeks, I upped my water intake (most days) to meet the requirement.