Think about your current toothbrush: How long have you had it? If it's three to four months old, you should definitely replace it. But instead of heading to the store, consider trying out Quip. The ...

To The Test: I spent 6 weeks trying this Instagram-famous toothbrush to see if it's as good as a Sonicare or an Oral-B. Sarah Mitroff has worn many hats at CNET, including Senior Mobile Editor and ...