When even boiling water raises a sweat, brew refreshing iced tea in the refrigerator. Fill a glass jar or pitcher with cold water and a few bags of your favorite tea, and let them steep in the icebox overnight. Remove the teabags and add garnishes, such as citrus in black tea, fresh berries in berry tea, or mint leaves in green tea. Tea is most flavorful -- and wholesome -- when freshly brewed, so don't leave it sitting out for more than eight hours, and discard it after one day.