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 ...

Think about it for a second: when's the last time you actually changed your toothbrush, and was it recently enough? Enter Quip, a NYC startup that mails you a new toothbrush every three months, cause ...