This is great. I came to the same conclusion some time ago. Of course, I never articulated it so elequently.

Anyway, anytime I bring new stuff into my house I take the same amount of stuff and put it in a box. About four times a year I call the Salvation Army and they pick up the box.

Before buying something new, I have to think about what old stuff is going in the box. Normally it isn't hard. On Christmas, when I get a lot of new stuff, it can be a challange. The worst is when someone gives me something I will never use and I have to put it right in the box, which seems ungrateful. Other than that, the box is liberating and putting stuff in it feels great.