I'm hearing that people are storing their fuel in things like soft-drink and pull-spout bottles? Uh, just a word of advice [although you probably already kow this] - it may be a good idea to change to either a dedicated aluminum bottle or a markedly different non-drinking bottle that is clearly labeled. Anything else can cause mishaps when you're tired :P
I just use the light plastic safety-top bottle that the metholayted spirits comes in, weighs about 50g and holds 500ml. Also, its clearly labelled 'POISON'.