Ok there are good reviews for the fuel belt, and I must admit it sounds helpful to have different drinks in different bottles...

I hope I can find one that feels good at my hips, and stays there. I'll try to find a running store in Vancouver that has some selection so I can try before I guy. I'm really annoyed when I have to return items through borders (shipping is expensive and slow...).

Thanks all for the good advice! Keep the ideas coming if you have more...