Do you work on projects and have them scattered about?
Or, do you stop yourself from working on projects because you have no place to keep them?
I used to do that.
Now, I have a sewing project basket here:
and some curtains I'm working on, here.
I need a better place to keep returns, though.
Have you got clutter because of temporary things?
Think about creating homes for them.
Christmas is coming. That's a huge influx of all kinds of temporary things. Not just gifts, (and the on-going process of hand made gifts, if any are on your lists) but baking items, pre-made food, part supplies, receipts, and so on.... If you think of places to put things, now, you'll have a much less cluttered Christmas.
ETA: You can catch all the posts in the series here.