Bottled water VS. tap water

Hello, 

This tip is about bottled water. People buy and throw away huge amounts of plastic bottles per year. A large portion of this is made up of water bottles. However, this is not necessary. If people would either, 1. refill those used plastic bottles, or 2. use their own water bottles, there would not be as many plastic bottles being thrown away each year. This could make the world a much greener place.

Thanks