Comment by ediwdlrow

"If you put those boxes in boxes, in boxes, you'd never know which box to open to find the next box. It would be chaos."

Not really...

If my outermost box says "Tools", a box in that box says "Automotive", and the box in that box says "Trim Removal".

There's no chaos, I drill down from the generic to the specific and find what I need.

Using Tags (keywords, etc) you can cross reference things too -- for example Tools that may have uses in both the Automotive, Household, Computer realms get those as keywords, and ideally the tool will have a primary role so it can exist in that box, or otherwise if it truly doesn't belong in any one box then it can just be in the Tools box along w/ the boxes that contain all the task-specific stuff...