I swear it's so that you have to wander up every single aisle! If I go down one, but don't need anything in the next, I can't jsut go down the next as that is then an 'out'... So I either have to go down the one I don't need anything in so I can access the next, or I miss 2, then have to come back on myself. How many of us them 'find' stuff that looks interesting, or on offer, and just chuck that in too?
The local Morrison is even worse tho; each aisle is split down the middle, each side one way. So if you want something down the aisle, you head down one side, then if you need something from the other side of the aisle, you can't just cross, you need to get to the end then turn your trolley round and head up the other side. And with shoppers stopping and browsing the shelves, and the shelf filling cages in the aisles, it's almost impossible to get it done in less that half a lifetime...
I hate it. Can't just 'pop to the shops' any more, got to factor in the 20 minutes queue first, then the one-way system, then the queue to pay.
I'm spending loads less, and the supermarkets are shooting themselves in the foot.