Lots of Keys

I went to see the little nest last Sunday. As you may know, I ordered security rail sine I might be living alone. The craft man worked it fast and it's put two weeks ago. I just had no time to came and seen it until last Sunday. It's simple like I imagine. Another step hopped.
But, what's making me dizzy is that now I have too many keys to take: The security door key, the main door's key, the side door's key, the back door's and the rooms'. Wow. Someday, I will have to make electronic universal key which use my DNA to open everything. I'm afraid that technology has not yet learnt here.