Question: things to do with orange peels?
Answer: Use orange peels for food.
Zest up your meals. Use orange zest in recipes for a delicious, fresh tangy hit – they're great in cakes and salad dressings. ... 
Stop brown sugar hardening. ... 
Make candied orange peel. ... 
Make orange peel-infused olive oil. ... 
Drink it in tea. ... 
Use orange peels for cleaning.
Turn it into a sponge.