We compromised with our cat and it turns out her second litterbox is the majority of the basement . But more srsly . We had a flood so her box got moved upstairs and she ' s very unhappy with the change . So if she can ever steal her way downstairs she ' ll poop in the corner as protest . At least the carpet is out and she ' s pooping on cold concrete for now . <| sep |> and similar services ? allows making copies of keys by taking a picture e . g . with a smartphone . According to this Wired articleletmebreakin you don ' t need a high quality setup to do this either . They did it in a couple of seconds while walking up a stairwell . The article also mentions that they can check if someone else also duplicated a key of yours so they seem to be able to detect identical keys . Can ' t find anything about whether they will let you know that you scanned a key twice though . If you trust them enough this might be an easy way to scan and sort out duplicates .