I live in an apt so storing extra stuff is difficult.
I just use the side of a crappy chair to mount the mill, and fasten a clear bag with a coiled coat hanger.
My "grain bin" is the drawer out of my fridge. Since my fridge usually has kegs in it, There is no room for the bin in the fridge anyhow.
I think the mill that implements the KFC bucket gets my vote for ugliest haha