I do sometimes when I remember when I am going to work, as to get water, I need to go up and down a whole lot of stairs.
I bought one of those stainless water flasks for this occasion, however it really annoys me when people go out and have this old plastic water bottle with them, and continually drink from it instead of asking the cafe or whatever for a glass of water.
I do it overseas as I do not drink the water however in my own state, I would not go out to a cafe with this awful plastic bottle.
Even when I am walking I would not carry water as am only away from home for about 30 minutes and I drink water before I leave and if need be, when I get home.
LOL! I am guilty of the old plastic bottle crime. However, I bought us three nice, good quality non-toxic plastic bottles a year ago. I have lost one, but they come in handy.