Kat, I got the idea that the list would make me look at my stuff in a different way from you! And, you were right about the detachment, and the simple fact that seeing things on a list just makes things look, well, different -- and opens up other possibilities. The U and L helped me see for sure which things I really did use and love. Today I looked again at the list & wrote an R next to items that, should something happen to them, I would replace. This has helped me see what I NEED (& the number of these items was so much smaller than my total number!) -- as well as the recognition that some items, should they disappear, would simply be irreplaceable (personal art work, special gifts, etc.). Also, if I imagined all my clothes somehow disappearing, when I thought of what I would need to replace, it tended to be a made up number of what I consider "enough", so I see that at present I have MORE than enough clothing, for example.
Another idea is a B or G, for whether an item was something I bought, or was given to me. The B helped me see how I've spent my money. The G helped identify whether I was hanging onto something simply BECAUSE it was a gift -- or sometimes engendered a feeling of gratitude for the care of loved ones.