Here's old thread of mine about carrying water...

http://forums.teamestrogen.com/showt...ighlight=water

REI has these things on sale...

http://www.rei.com/product/795871

http://www.rei.com/product/799552

I also own this (comes also in seat post clamp if not carbon post)...

http://www.rei.com/product/768770

The way I can carry two full size water bottle on my smaller frame 49cm road bike is with side loader cages... awesome...

http://www.arundelbike.com/Sideloader.html

I can't stand to drink anything flavored, so Cliff Shot Blocks work great for me... like gummi bears, yummy way to get lytes... margarita flavor has x 3 sodium...

http://www.clifbar.com/food/products_shot_bloks/

Last... if you try to plan your route with a gas station for stops to buy some more water that helps too.

My asthma action plan w/my doc is use albuterol inhailer 15mins prior... plus bunch other stuff... and I'm with IndySteele... nights are the hottest imo.... midwest girl here too, btw... ugh on our humidity!