I really like this short blog post's concept that "curating" our home is better than just collecting stuff or organizing stuff.
We refinished our living room wood floors one year as a DIY project. Obviously we had to take everything out. When it came time to put the stuff back, I decided to "curate" rather than just figure out how to fit everything back in. I very selectively put back only the things I loved, and got rid of the rest. It made a HUGE difference, not only with how the room looked, but with how I felt IN the room.