So you've decided you need a break from your smartphone. You're not looking to do anything drastic, like revert to one of those old school Nokia bricks, because, let's face it, having a supercomputer in your pocket comes in handy. But you've grown wary of how you use the thing—the way it keeps you up at night, distracts you from your work, interrupts family time. The impulsive way you check it, it feels ... off. A bit like codependence.