Keys to the house

Just a few keys handed over in the Notaire's office on purchase day. The largest one is the front door key and is longer than a normal-sized hand. Not easy to lose but also not good if you lock yourself out of the house. No copies readily available. This has happened to us - just the once was enough. Fortunately Merv was able to climb in through some shutters left open - which we now don't do. Lesson learnt.