I know that Waitrose is considered the most expensive of the three, but I'm not convinced. What are your thoughts on which one is the cheapest week over week for relatively good products? I buy a few branded things like diet coke, pizza express, ben & jerry's, but buy a lot of Waitrose essentials as well. I normally buy free-range/organic.
I have a weekly delivery and want to set it up and kind of go with it, I don't want to do a lot of comparison shopping.
I'm also thinking that maybe I should do an enormous monthly shop from one store and a weekly shop from another like Ocado?