kittylester
Coild you alternate - Sainsbury's one week, NT the next?
That's what I was going to suggest. She could buy for two weeks instead of one - maybe doubling up on what she usually buys as most things keep pretty well in the fridge, and have their use-by date on them to check (You could do that while she is picking the next thing.) If she runs out of something essential she might be desperate enough to "allow" you to pick it up for her, and after a few weeks she will have adjusted to the different quantities.


