Two months ago, my friend Rose and I traveled to the south of France, where, over the span of two weeks, we traversed the Côte d’Azur, exploring coastal, seaside towns and eating our weight in bread and the freshest, briniest oysters that tasted like the ocean. It was a truly magical trip — my first international one in four years. The only problem: I forgot that tap water overseas wasn’t necessarily always the safest to drink. So, every night, I had to boil water and fill my bottle for the forthcoming day, and if I forgot, I had to buy a new plastic bottle of water, which felt like a dagger to my environmentally conscious heart.