Night Window Locks Even on High Floors

Open night windows invite weather and worse.

Checklist for Night Window Locks Even on High Floors — after-work energy, thorough enough to use.

Do this in order

1. Write your constraint in one sentence.
2. Shortlist two options near real life.
3. Test one on a normal weekday.
4. Save names/pins/chats where half-asleep-you can find them.
5. Keep a backup that isn't wishful thinking.
6. Stop tinkering for thirty days.

The Chengdu-specific catch

Latch after 10; AC or fan; keys not on the sill.

Watch for

Urgency theater, vague "no problem" promises, and advice that assumes unlimited energy.

Near + repeatable beats famous + exhausting.

Chengdu gets easier when routines stop feeling temporary.