Screenshot Health Code Before Metro Dead Zone

Screenshot Health Code Before Metro Dead Zone sounds like a micro-optimization until you are at People's Park teahouse where mahjong soundtracks your afternoon.

A friend visiting from Shanghai who thought Chengdu was 'mild' once showed up to PSB registration without the landlord and got the slow queue. 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.

Your mileage may vary.