Functioning as an extension of your iPhone, the Apple Watch makes monitoring and receiving notifications convenient with just a glance, leaving your iPhone in your purse or pocket. But just like on your iPhone, these notifications can begin to stack up, so let's show you the one-touch method for clearing them all at once. While on the watch face, swipe down from the top of the display to enter the Notification Center. Instead of swiping away each notification individually, perform a Force Tou...