Found more keys yesterday. In a craft bin. In an old, old plastic container filled with different sizes of safety pins. Who uses safety pins anymore? And why do I need them in all sizes. Boy, what a strange collection.
One key has U.S.P.S. stamped on it. Uh, Oh. The Post Office Police have probably been looking for it. 😀 The others I have no clue what they used to lock/unlock.
One more place to look. The basement.