Being that the heat index today is over 105, I'm stuck inside till at least 7...

Especially in this heat, only taking in water is downright dangerous for any excercise over an hour. Last summer, I nearly landed myself in the hospital with hyponutrimia (cramping, heart palpitations, etc) from drinking "heaps of water" because I didn't like the taste of gatorade. Learned that lesson the hard way, now I'm a dilluted gatorade with pretzels girl, but I think I may order the Clif Shot electrolyte replacement mix, since it has waaay more sodium/potassium than gatorade, which is what's really important.