http://www.peterwalshdesign.com/#&panel1-3
thanks for reminding us about Peter Walsh. Mr. Stitchnripper and I used to watch Clean Sweep - just the parts where he went through the "stuff" with the homeowners, to help them decide how/what to purge. He was not an advocate of getting rid of everything, but had some great ideas. He has helped us over the years to decide what goes.
As far as downsizing, I am thinking about that as we approach "that age" - what do I really need and want? I do keep a donation bag going and work on keeping it full. Good luck with it all. Not easy.