[Psype]

Get a smartwatch. Not kidding.

It might sound stupid, but since I have a smartwatch and only filter the mot important notifications on it (calls, SMS), all other notifications can sit on my phone & wait for hours. Whatever. I still can be reached in an emergency.

I don't event check my phone to get the time, duh, that's a watch !

[neop1x]

Or a fitness band like MiBand. It works similarly and battery lasts almost a month.