I buy a significant amount of my “stuff” at Costco, but now and then I do come up with a problem product. Not often, but once every few years.
Here are two products I won’t buy:
Kirkland brand Environmentally Friendly Liquid Dish Soap. It works fine, but I can’t find a decent way to dispense it. It does not come with a refillable bottle, and perhaps here’s why: no matter how large the hole on whatever dispenser bottle I use, it gets hopelessly clogged within a few days. I have tried numerous dispenser bottles, and I always find myself having to jam a wooden skewer into the hole to unclog it. Really annoying. While I could make the hole in a bottle huge, I would wind up wasting product, which is not, you know, environmentally friendly.
Men’s black Adidas ankle socks. Nice socks, but if you have a light carpet, you will have sock fuzz all over your house and will be vacuuming every day. I have never seen worse fuzz from any other black socks. You have been warned.
While we’re on the subject, I bought a Plantronics Explorer 395 Bluetooth headset at Costco that I have never been able to pair with my phone. Not Costco’s fault as I should have brought it right back to the store. Costco is great about returns, but can’t help with customer stupidity.