Hydration on long rides

Any good ideas for long rides? I usually find myself with no water after 60 miles and i am planning on longer rides. I only have 2 waterbottle cage spots on my bike. Other than planning on a stop after halfway and an aero bottle holder behind the seat is there any other reasonable ways about doing it?

Camelback = 3 more liters. I usually try to ride by friendly houses on the long ones in order to refill rather than the camelback though…

you can get a camelback that holds 100 oz.

I have 6 water bottle cages for training rides. two on the frame, 2 in a saddle wing, and a double PodiumQuest between the aerobars. This is enough to do long rides in the mountains where there is no place to stop for water.

I tried a cammelback but find it really uncomforable in the aero position

Add a couple of behind the seat bottle launchers. Zefal makes 33oz bottles.

You can always stick a bottle in your jersey pocket, Stash a frozen one down the front of your jersey.