I can't believe I've let this one go so long without sharing. This came to me as I was pondering how difficult it is to offload an item because of a memory attached to it, or some perceived utility.
I came up with this back in January; maybe it will help you de-clutter. Maybe you can offer refinements or helpful criticism to make it better?
If nothing else it's a good thought exercise to put you in the right frame of mind before tackling a large cleaning project.