Giving up my smartphone. It's been one of the single best choices I have made for the mental and social health of me and those I interact with, primarily my young family, just so much better.
What's your alternative? Have you come across any scenarios where not having the smartphone has been particularly problematic?
I am now the proud owner of an older Nokia 105. I'm also not in the US, so this is a much more viable choice from a practical and cultural point of view. It has not yet caused me any problems, but then my lifestyle right now is a lot different than what it should be. I'm looking forward to seeing how this works out.