They told us to "just do it," so we're doing it. Hiking, biking, mountain climbing -- you name it. But as the weather heats up, dehydration can be a big problem. You've got to drink something, and enough of it, or you risk heat stroke or another heat-related illness. One friend thinks nothing of bicycling 70 Kms -- over some pretty grueling hills -- with a water bag on his left shoulder, a squirt-bottle of honey on his right, and a few snacks at break times. Gives him plenty