Choose a return point that fits arrival
Trace where each person naturally goes after entering the home. An agreed spot near the bag or coat they actually remove may work better than a hook nobody passes. Consider physical security and who can see or reach the keys; do not put them in public view just because the spot is convenient.
Test the exception as well as the routine
Test the routine on a busy morning. If a key often stays in a bag used the night before, add a brief arrival habit that actually fits the person. Avoid labeling keys with the home address or publicly sharing where spares are kept.
If keys often stay in the previous evening's bag, put returning them into the normal bag-emptying step rather than adding a distant reminder. For shared keys, name the current holder when they change hands. Someone knowing the usual location does not mean the set has already been returned there.
Keep spares distinct from daily keys
Agree privately on who controls spares and how a household member requests them. Use an identifier that helps authorized people tell sets apart without disclosing the home address or where the spare is kept. If the holder changes, confirm the physical transfer and update the private record. Avoid storing identifying access details in broadly shared household notes.