High quality material versions of items.

Comb from horn instead of plastic. Jewelry from precious metals. Clothing made out of wool/cotton/linen instead of crappy polyester. Cast iron pan instead of teflon. Flower pots from terra cotta instead of plastic. Cutting board from wood instead of plastic. etc etc

All of these simple choices make things that are buy it for life or even pass down for generations. Instead of short term use and throw away stuff.