I usually don't run for longer than an hour so don't need water but have recently upped my runs to 9 miles (90 mins) so could still last w'out water but today did 12 miles and have such a headache after. I forgot to bring water on this occasion but I had planned to drop a bottle at the beginning of the run as I'd loop back by it at about mile 7 so could have a drink w'out having to carry it all the way. I have a belt but find it very cumbersome and I have a small backpack with a bladder inside for long races but that feels like overkill for a 2 hour run so what do you all do???? On this run I decided to invent wrist bands that stored enough water to keep you going but didn't take up a hand or mean a belt banging around your hips or campaigning the council for water fountains along country routes - I'm hoping I won't have to go to these lengths!!