Name something people only use once!

Gym Membership

Shoes! I've had so many pairs I've only worn once because they hurt my feet. Do give them away sometimes though so maybe eventually they do get used agan

Coffin, but you use it for a long time.

a pill or a spoon of medicine

Glucose Test strip

Foley catherter

Guessed nurse then checked out profile. Haha.

Virginity..

Kleenex

Casket.

Actually there are caskets for rent, for wakes and viewing, then you get cremated.

A placenta. Well, I hope...