Can it ever be clean enough?

So, with all the moving of furniture we're doing, we're currently cleaning out everything we can. We're talking deep cleaning the carpets and all. It has been tons of work, especially moving everything around to get the floor space to clean.

Now, with this being our first child, it's pretty easy to get carried away. We're definitely disproportionally optimistic compared to realistic. We want the best for everything and we haven't really figured out that line of diminishing returns. I'm sure we'll get there, but right now we haven't figured out just how clean clean enough is.

I am personally of the notion that was are overly clean and causing ourselves harm. This is especially true if you do it at a young age. I got this philosophy from George Carlin, but you can read about the science of it here.