Aside from the environmental impact of using disposable sanitary items, the beauty of a menstrual cup is they don't need changing as frequently as tampons do and can be left inserted for up to 12 hours. So, on a hot day when you're busy going about your life, you won't need to worry about where the nearest public bathroom is. When I was wading into the world of menstrual cups for the first time, there was one cup that was recommended to me multiple times when I asked my girlfriends which cup was their favourite — the Intimina Lily Cup (£25). According to the company, its slanted shape has been designed to fit your body's natural curves, so it's more comfortable than some other cups.