Brita 768mL Premium Filtering Water Bottle – Now $13.99 (Was $21.47, 35% Off)

Been using this one for a while — it’s sturdy, filters well, and just makes tap water taste better. The built-in straw and carry loop are convenient for walking or gym. Top-rack dishwasher safe, which is a plus.

Each filter lasts about 2 months and supposedly replaces around 300 plastic bottles, which is kind of satisfying if you're trying to cut down on waste.