Why at all do we want to have a classified list of our possessions? Why not just keep a running list where we enter each thing as it comes, something like a “general ledger account” of day-to-day transactions?
I came upon a very interesting book on this question (yes, there are geeks who write whole books on as mundane an activity as classifying and arranging!) titled “Everything is Miscellaneous – The Power of the New Digital Disorder”, by David Weinberger (published 2007 in Times Books by Henry Holt & Company, New York, ISBN 978-0-8050-8043-0). Weinberger is described as a fellow of the Harvard Law School’s Berkman Center for the Internet & Society, and an adviser and consultant for Fortune 500 companies, bestselling author, and a doctor of philosophy, so he should know a thing or two about the subject. His thesis is that the power of the computer and the Internet have placed huge databases at the call of a button, and searches on key words can be made in a fraction of a second, so nothing really needs to be classified any more. In other words, everything can be entered in a single, massive list of all things. Read more here