Could I have say 2 soups in one day? Or two tetra bricks? this is what I have been doing and I am not sure whether this is wrong. Does it have to be one of each product every day or can you mix and match? there are days when I am out all day so I take 2 tetras with me and drink the extra water. Is this ok? Also I am thinking of stopping the soups as I don't like them and have milkshakes and tetras instead. Is this ok?