The first zero waste change I adopted, more than four years ago, when I had never even heard of the term “zero waste”, was buying a menstrual cup. At the beginning I was very perplexed and worried, fearing that it was too difficult to use, but the positive experiences of my friends convinced me to try it. I still thank Sara for making me discover this simple invention that has changed my life for the better! Unlike what many people think, this menstrual cup is not a new product on the market: the first patent dates back to 1932! But only in the ’80s it became more popular worldwide, because…