You need these. If you think you don't you're not protecting your toothbrush when you carry it with you. (Oh, you don't carry a toothbrush with you? Oh... Okay. Back, back boo.) Or in your gym bag. Or even in your bathroom. Ever heard of aerosol fecal spray from your toilet? Ever watched the MythBusters episode? See below.
"MythBusters Jamie Hyneman and Adam Savage uncovered the dirty truth to this myth by covering a bathroom with 24 toothbrushes, two of which they brushed with each morning — the others they simply rinsed every day for a month. As experimental controls, the MythBusters kept two untainted toothbrushes in an office far away from the lavatory. At the end of the month-long trial, they sent their toothbrush collection to a microbiologist for bacterial testing. Astonishingly, all the toothbrushes were speckled with microscopic fecal matter, including the ones that had never seen the inside of a bathroom. The confirmed myth unfortunately proved that there's indeed fecal matter on toothbrushes — and also everywhere else."
And yes I love these dang things! It got to be a bit too much for my OCD to have multiple toothbrushes exposed to each other so I began making them all put covers on their brushes. The kids love them because they are easy to use. I love them because they keep the tooth brushes clean. The price is really reasonable which is why I have ordered these more than once.