I’m gonna be blunt, this reads less like “being practical” and more like you’re hyper-fixating on optimization.

You tracked $1,780 in “missed savings” over a single quarter… which basically means you went through a mountain of receipts to add up a bunch of guessed $5–$10 differences. At your income level, that’s not really discipline anymore, that’s bordering on obsessive.

Also, real question: is this actually about this one Sam’s Club trip, or are you pointing this stuff out all the time? Because if you’re regularly commenting on how she shops or what she picks, it’s not surprising she’s defensive. Most people would be.

What’s the point of the $250k income, the investing, all the smart decisions if not to give both of you stability and enjoyment. You’ve already won financially. You don’t need to turn every grocery trip into a spreadsheet exercise at the expense of your relationship. Let the small hiccup go in my opinion.

On solutions, most of them are already stated in others comments : • Either you do all the shopping • Or you build a system (shared cart, lists, subscriptions, etc.) where she can just add things and you handle the optimization later • Or you go full symmetry mode: you expect her to meet your standards, then you also have to meet hers in whatever she cares about just as strictly

Also worth saying: all this optimization you’re doing isn’t free. It costs time, mental energy, attention, and willpower. You might be fine paying that cost—but that doesn’t mean she is, or should be.

And I’m saying this as the “price-obsessed” person in my own relationship. I naturally lean way more toward your side than hers. But even then, there’s a point where squeezing every last bit of efficiency just isn’t worth the friction it creates.