It sounds gross, but we’ve all thought about using our own urine for mouth wash. No? Maybe it’s just me. Regardless, urine contains ammonia which is a natural teeth whitener and can actually be used to prevent you from getting cavities! So before you go to the dentist next, you know what to do. Another common use of urine was to clean clothes. Laundrymen used to set out jars in front of their shops and whoever was passing by could just pee into the jar. Whenever the jar became full, the laundrymen would bring the jar in and use it to clean clothes!

I guess the ancient Romans enjoyed the smell of urine because these businesses were such money makers that emperors Nero and Vespasian both made urine taxes! Ancient Rome must have smelled like…well, you know. Check the source to learn more about Roman Urine!