But it is interesting enough that there are things father and I can't see, such as untidy rooms, dusty furniture and dirty floors.

If this looks overly cluttered, keep in mind that this is a rather extreme example (normally not all of these things are relevant at the same time).

I'll have to clear up all the mess in the office.

Even if the rest of your house is cluttered, this area can be a great reminder of how you might feel living with less.

He took me into his littery bedroom.