Turn Off Roaming on Arrival or Bill Shock

Turn Off Roaming on Arrival or Bill Shock sounds like a micro-optimization until you are in a Jinjiang apartment where the dehumidifier runs like a second roommate.

A student I met at a language exchange once paid ¥8 for a watermelon chunk that tasted like refrigerator regret. The fix took less time than telling the story.

Try this once: write the rule on your phone lock screen for three days. If it survives, it is yours.

Not gospel.