I've noticed huge improvements since I started to just sweep the floors daily.

Now, from time to time, when I feel more energetic, I do one extra random thing while I'm sweeping the floors, sometimes is for making the sweeping easier by taking out some of the clutter because I want to reach that particular corner, some other times is dusting a shelf that I've been seeing every day and today seems easy for some reason.

Let's be clear, the house is still a mess, but at least now it feels nice instead of depressing.