Gym and Studio Rentals Can Be Gross — Here's When to Buy

Many studios and gyms offer bottled water, which is a great option if you've forgotten your reusable bottle. That said, reaching for the $2 Smartwater every time you work out is not only pricey, but it's not cool for the environment (single-use plastics are pretty terrible and the cause of massive amounts of waste polluting the planet).

You can get a decent water bottle for $10 or less (some are even $5). You need water at EVERY workout, regardless of studio, gym, or style of exercise. We'll let you do the math.

Our suggestion: This is a no-brainer. Do yourself, your wallet, and the environment a favor: get your own water bottle.