I just totted up what I spent at supermarkets this month and realised that this is why I am £20 away from the end of my overdraft the day before payday. DH has also bought groceries this month so this isn't even our entire bill! We don't share accounts so it gets a bit murky as to who spends how much on what (this is a whole other thread to be started in relationships, we won't go there just now) but I'm pretty sure this is extortionate.
I have never been much of a budgetter when it comes to food shopping, I just buy what we need and try not to go for the most expensive item. What do others spend if I may ask?