Practical answer
Can I keep my iPhone at the office?
Yes, and it's one of the most effective versions of this change — provided calls still reach you.
Leaving the smartphone at a desk works well because it gives the device a home. The failure mode is being unreachable, which a simple phone on your number solves.
- Give the smartphone a physical place — a drawer, a dock, a shelf.
- Make sure calls and texts reach the device you carry.
- Move WhatsApp to the desktop app so work messaging still functions.
- Decide what happens on weekends before the first weekend arrives.