Flat Ice Pack in Lunchbox, Not Rolling Around

Flat Ice Pack in Lunchbox, Not Rolling Around sounds like a micro-optimization until you are at a wet market off Second Ring Road where the auntie remembers your face after visit three.

A friend visiting from Shanghai who thought Chengdu was 'mild' once forgot to screenshot the QR code and became that person at the gate. 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.