Now that we are both retired we do the food shopping together, when it was just myself that was doing the shoppng, I mainly bought the same items every time, and still buy a lot of store brands, especially for cleaning items and toiletries, and kept to a resonable budget. Now that hubby comes with me, it's a much more enjoyable chore, as he is an ex chef he loves to plan our meals in advance, and pays a lot of attention to the fresh food counters, especially the meat and fish.
It makes it much easier for me, as he also makes delicious meals. I would say the price of our shopping has increased, since he has been coming with me, but it's not all down to him as the price for all items has increased greatly.
I don't complain about it as he has been the main breadwinner over the years, so it's good that he can spend some of his hard earned cash on something that gives us both pleasure.