I sometimes order stuff off of temu or wish. You know, those situations where "crap quality product" is what you're actually after.

But I have a rule of never ordering before a week has passed. If I still need or want the item after a week, the purchase can be justified, but I have to pick an item I already have to get rid of first.

One piece of crap in means one piece of crap out.

Things I've bought like this: Phone holder for my night stand (a simple one that allowed me to keep my phone in portrait mode. I WFH with my bed as my "office").
Maunesium (the kids were curious once I mentioned that metal can burn). Moisture detection stickers (they turned out pretty good, actually. I use them at work all the time).