I had the same problem. My flat was stacked full of boxes of stuff I couldn't throw away.
I had 12 PC cases stacked on top of the fridge in the kitchen.
Then I got a new girlfriend who had her own business, and I started learning a new language. I was very impressed with the way she did her stuff, so I started throwing away stuff.
It took 3 years, and I'm still going through the last few boxes, but I guess I've thrown / given away / recycled / charity-shopped about 90% of everything I own.
It's amazing how much more space I have now. And a lot more possiblities have opened up in my life and artistic career.
Some examples of what I got rid of:
- 8 bin bags full of clothes (I have one rail and one drawer of clothes now)
- 14 PCs (mostly broken!) I only have a laptop and a B+W G3 now.
- about 1500 books (had to accept that the ones which I've read, I'm not gonna read again, and the ones I haven't read, I'm never gonna read. Down to my last 300 books now.)
- 50 posters.
- 3 chests of drawers.
- 6 chairs.
- 3 bookcases
- 5 boxes of fabrics.
- 3 bikes (my last bike got stolen recently - I don't miss it)
- about 2 skips full of 'art' stuff - mostly strange stuff that I found somewhere and dragged back home with the vague idea of making 'artwork' out of it.
11 CCTV camera cases
10 shelf metres of folders and files full of various things like newspaper clippings or flyers or handouts.
2 microwaves.
Basically my guidelines were:
- keep stuff that I'd personally made.
- if I hadn't made something but it had real personal value, I tried to cut off a little bit, keep that, and junk the rest.
- only keep the best quality stuff. Junk the rubbish.
- keep something small and get rid of the large stuff.
- don't obsess about trying to sell stuff - sometimes just giving it away gets you a better return than trying to sell it.
- charity-shop any clothes that I hadn't worn in a year.
- buy less, buy smaller, and buy better quality. (I dumped my PC and brought a powerbook.)
- concentrate on getting rid of the bigger things first.
- get rid of any 'projects' that I hadn't touched in a year.
Took a long time but really changed my life.
My place looks seriously minimalist now - clean white carpet, white curtains, pine furnishings, red sofa, big pine desk with nothing on it except my Powerbook...
(and a pile of toys in the corner for my baby daughter

)
.. RedTomato ..