If you zip tie the cables on your TV to the leg of the table it would make it look a bit tidier. Even zipping to themselves would be nicer.

You might want to try to put the filing cabinet in a closet, or the shed maybe. Or cover it with a piece of fabric or table cloth.

Your curtains look functional, but half done.

And you may want to ditch the protective sliders on the coffee table. Maybe replace with a rug.

Also, to help make it less of a burden, a lot of people give themselves a day in between people staying, especially if they are doing all the work themselves.