i've been using the soya 'molk' from lidl, it doesnt split, and i've found a wee screwtop container that holds exactly the right amount for a days use at work.
the soya flour....i have tried a few things with it, just using it as a direct exchange for wheat flour, some things taste strange, others where fine. not made anything for a while, so can't remember, will need to start experimenting again!