> In the UK don't pharamcies do this sort of thing for you.
Yep, they do
> Also comments about how it saves wasted pills don't make sense for me
People don't follow instructions sometimes, and doctors overprescribe for the instructions they give you. My doctor wrote me a prescription for something a long time ago and warned me about the risk of addiction. They said I should stick to a dose, but prescribed me a larger amount because I could take more _if I needed it_ for a day or two. The pharmacist filled the prescription for about 3x what I should have been given without blinking an eye.