Cleaners are simply better than doing it yourself especially if you are a busybody. These days many families opt out into hiring helpers. I mean who wants to come home after working 10 hrs a day? I think hiring a Cleaner simply makes things easy for everyone. If you hire the right one and keep that cleaner for life and prices are great, then you’ve hit gold. Cleaners simply follow a checklist and there shouldn’t be an issue considering this is what they do on a daily basis. Like, I said before they are human and tend to might forget or missed things. But is no way, to fire them right away. Please, I beg you to talk to them and let them know what your concerns are, chances are she would be more than happy that you told her what was on your mind. I don’t think rehiring different cleaners that come and go in your house is a good idea. So stick to one cleaner for life, it will do you good.