I did a huge decluttering of our house in the spring and summer of 2014. It was called the BERP—for Big Entropy Reduction Project.
My conclusion? It's nice to be able to actually sit on the futons, and nice to have so much open floor space. Nonetheless, I think the whole concept of decluttering is kinda creepy, even unnatural. I mean, do packrats declutter their middens? Do magpies declutter their collections of treasures?