The weight has been steadily creeping up on little bits and bobs. Grams, of course, but the only way I got my weight down was by bits and bobs and grams. The trouble is, I got here by thinking my way through things- I don't need this, I don't need that. Now with everything cut out, I'm going back up- I could do with this, it would be nice to have that. I always wanted light combined with function. Then you get a genius idea like this. For water I carry a mineral water bottle and a 1l platypus which I only fill for camp. So hows about replacing the 25g platypus with a bag ? I always liked Colin Ibbotson's water bag idea, but it seemed a lot of work plus the bag seems pretty vulnerable. Hows about using a pour and store bag? I have to thank Whartson Hall for this-it's tougher than a sandwhich bag, it carries more than the litre the platypus carries if you overfill it. It has a wide opening for filling too. On the minus side, it's going to burst open if you drop it, but I rarely drop my Platypus. As a counterbalance, it's less vulnerable to falling over than the Platypus because of its lower centre of gravity and the gusseted bottom means it's nice and stable. Weight? 11grams- half the weight.