Hierarchical organizing is a balance:

You can do things the Apple way, & have only 3 choices at each level, but then you either need to dumb-down everything so it fits in a sane depth, discarding most potentials, XOR you run into near-infinite-depth..

Or you can do thing the other way, with wide selections at each level, and much fewer levels..

but then you get the visual/cognitive clutter..

Sometimes I do it so that at the top I've got something like..

• Humanities
• Geekery
• Art
• Apps
• Projects
• Books
• Articles

( I'm just doing this off the top of my head, hence the not-in-alphabetical-order-or-any-other-sane-grouping )

In other cases I might do this..

• Books___Technical
• Books___REF
• Books___Psychology

etc.

IOW, limit the number-of-things visible at each level,

AND fan-out enough so that I reduce the stuff at the next stage, see?

That balance is the whole key.

However you impliment your right-balance, it's the most important thing in getting it usably-right for you, long-term.

It may require you to develop a couple new habits, like more-careful organizing, or like bearing something that you don't like, aesthetically, but the reduced-waste-of-effort in having things FINDABLE can become significant, long-term, see?

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