Since I did I a lot of walking in Europe, about 2-4 miles per day, I brought my own aluminum water bottle. That saves me a lot of money! I probably save about E6.00-E10.00 per day.
The bottled water in Paris is expensive. The small one will cost you E1.69 to E2.69 depending on which store you bought. Bringing your own bottle container also saves the environment- eliminates those unwanted garbage! (although many recycles but it is kind of difficult to find recycling bins when you are travelling)I love walking along the Champs Elysees.


