Start with a count. Before the first visit, write down how many keys exist, who holds each one, and where the spare is kept. Most household trouble with a visiting helper begins with a key that moved without anyone writing it down, and a count made at the start is the only reliable way to tell later that a key has moved.

Local option: New Plan Care gives families in the St. Louis area in-home help so a parent can stay home: companionship, help with bathing and dressing, meals, and overnight care. Call (314) 405-0887.

The signs that show up first

The first sign is a door found unlocked when the visit ends and nobody remembers locking it. The second is a spare key that cannot be found when the family goes to look for it. The third is a lockbox code that stayed the same after a helper left the schedule. The fourth is a visit note that lists the day's tasks and says nothing about the doors. Each one is small. Together they show that the key routine has no owner.

What to check at each visit

Pick one check and keep it short. Ask the helper to confirm that the exterior door is locked and to write that single line in the visit note. A family that wants more detail can add the spare-key location and the lockbox status to the same line. The aim is a record someone can read in ten seconds, not an audit of the helper's day.

What to ask before the first visit

Ask the agency who issues keys, whether it uses a lockbox or physical keys, and who collects the key when a helper leaves the schedule. Ask whether the agency changes the lockbox code after a helper departs, and how long that takes. For an independent helper, ask the same questions and also ask who the helper should call if a key is lost during a visit. Write the answers in the household file next to the emergency contacts.

When a key goes missing

Handle a missing key as a change to the lock, not as a search. Change the lockbox code or the lock itself as soon as a key cannot be accounted for. Confirm the change in writing with the agency or helper, and record when the change was made so the household knows which keys were valid at each stage. A lock change takes little effort, and it ends the uncertainty a lost key creates.

Where this fits the rest of the plan

Key control sits beside the visit schedule and the supervision of the aide. When the household keeps a written visit schedule, the key line belongs in the same file. For a county-level view of how supply is drawn, the guide How to read a caregiver-supply map for your county explains the method. Keys are the least visible part of a home care plan, and they are the first place slippage shows when no one owns them.