As someone who’s passionate about reducing waste, one area I’ve found myself lacking is in my use of tampons. But reducing waste isn’t the only reason to make the switch to tampon alternatives: A reusable period product like menstrual cups, menstrual discs, reusable pads, and period underwear can also save you a ton of money in the long run. A single reusable disc or cup, for instance, only costs US$30 to US$40 to start and can last up to 10 years, which ends up way cheaper than buying…