I carry and refill a commercial water bottle to church, where I play harmonica. And I always have a freshly refilled bottle or two in the car or on hikes or bikes or paddles.

I notice that a water bottle is tolerated in places where "no food or beverage" signs are around.

At our dances we put out pitchers of tap water with ice. We have folks use plastic cups, but furnish felt tip markers so folks put their name on their cup. Most dancers need a lot of water.