My wife is an Ecologist and travels all round the world for work.
Myself and Ella (daughter) recently joined her on a trip to Sri Lanka to help and took a Water-to-Go bottle each.
We took the water bottles out with us everyday in Sri Lanka, and Ella always had one at her bedside at night. They were a fantastic investment; we didn’t have to buy any bottled water the whole time we were in Sri Lanka!