I love Flylady! Found her a couple years ago and she changed our life forever. Years ago I bought an ~800 sq ft home in Northern VA, thinking I could settle down and be the crazy cat lady (ok, I only had two cats) with all my stuff. Then my brother moved in for a few years, so one room of stuff had to go. Then he left and I actually got married at 37 so here comes new husband and his 40 years of stuff. Most people would buy a bigger house. We - with help of flylady - started dumping. The place is still small, but perfect for us. It is peaceful, uncluttered, and we could afford to live here even if one of us could not work. And we are very careful about what we buy. Nothing new comes in unless something old goes out!
Hoarding is a wide spread problem and while some of it is a mental problem, some of it is culture - the culture of stuff. How much stuff do you really need? How much of your wealth is lost to purchasing stuff every year? How much longer will you have to work past your retirement age because you have squandered money on stuff? Like I said, Flylady changed our life. I recommend her to everyone.