Olive oil:
When I was in Greece I stepped on a sea urchin."Rub olive oil on it" was the answer. The skin will soften and the needles will pop out.
Conditioning leather? Same answer.
Conditioning wood? Same answer.
Lubing kitchen tools? Same answer.
Baking soda:
Leavening agent for baked goods.
Neutralize battery acid.
Auto parts blasting without sand, glass bead, or walnut shell cleanup (but more expensive and needs paint prep).
Cleaning teeth and other surfaces.
Anti-Fungal and Antibacterial for skin.
https://draxe.com/nutrition/baking-soda-uses/
Apple cider vinegar:
Various health benefits claimed when consumed in water
Cleaning stinky drains.
Cleaning teeth.
Poaching eggs.
https://www.healthline.com/nutrition/apple-cider-vinegar-uses