Possibly a bit of an AIBU. I'm expecting soon and getting irrationally annoyed by my DMs mindless purchases for the baby.
It's mostly clothes, they're all scraps from the sale rails of poundland and supermarkets in random sizes. Some examples include; a newborn summer hat with sun flaps for a late autumn baby, 9 month fleecy joggers just for when peak summer hits and today I got some Disney stuff with loads of fussy accessories. None of them are practical or going to be vaguely useful. They'll likely all end up in the charity shop because it'll be out of season and the baby will have grown out of them by the time I can.
I've asked her to stop, and she won't. I'm not overly precious about what to dress the baby in, it's not like they'll be wearing designer gear. I think what annoys me is she's clearly buying just because they're cheap tat, and giving it no further thought. I'd rather she didn't bother as it's just so wasteful and pointless.