What's are some of yall's less obvious "always buy second hand" items?
Crockery, cutlery, pressure cookers and computer peripherals are some things I think it makes no sense to buy new. 2nd hand they're usually under a tenth the price and often better quality.
I've heard some arguments that buying 2nd hand cars is usually better for the climate owing to how much of a car's lifetime carbon generation is the manufacturing.