I think about this a lot -- I definitely have hoarding tendencies, and while marriage and other circumstances has helped me keep it in check, I also have a lot of shit. Having been an active ebayer doesn't help -- I keep things thinking I might be able to sell them, and those pile up.

I've got five boxes of stuff ready to be picked up by a local charity tomorrow, and as soon as it's picked up, I'll schedule them for their next bi-monthly pickup. Putting it on the calendar forces me to remember to keep weeding stuff.