Isn't this a product of long commutes and sedentary living? There are only three times when I feel compelled to use my smartphone:

  * When in a train/bus/car
  * When I need directions
  * When I feel like a game of chess

Further to this, my smartphone is also useful for:

  * It's alarm clock
  * Looking up facts over discussions away from home/office

I noticed my need for a smartphone dropped dramatically when I stopped commuting. I don't have push email (on purpose) and so I don't check email every time it beeps. After a month of this, I lost the automatic urge to check email.

I would do without a smartphone except for the maps function. I could buy a dedicated GPS, but the additional features, having web access anywhere, chess (trivial), alarm, push the smartphone ahead.

Get rid of your car, don't live in a sprawling city, walk places: problem solved.