We all love to snack, but sometimes noshing on food in between meals adds up to tons of unnecessary calories. So I've discovered this little tip that not only prevents me from raiding the fridge, but it also helps hinder cavities. I brush my teeth and then rinse with fluoride. After rinsing, you can't eat or drink for 30 minutes, so it'll help curb your desire to snack. Plus clinical studies show that using a fluoride mouthwash can provide extra protection against tooth decay, so it's a win-win.