Find a Phone-Home
Pretend your smartphone is wired to the wall like a landline. Act as if it is chained to its charging corner.
The best phone-home is a spot between spots. Consider counters, bathrooms, and entryway tables. Pick a passing place.
Find a phone-home far away from your comfort zones. Don't waste away your life in bed with a screen. A phone on your desk/couch/bed makes a den of distraction.
Don't visit your phone's home until you've tackled your day's important things. The world will wait.
If you're worried about missing notifications, consider extinguishing them. You won't miss notifications that are never delivered!
And when you're ready for adventure, leave your phone in its home while you explore The Outside.