The reason one big pile is the answer, at least for me, is that to do otherwise would be to bog myself down in minutiae of taxonomy. Being hierarchical worked w

The reason one big pile is the answer, at least for me, is that to do otherwise would be to bog myself down in minutiae of taxonomy. Being hierarchical worked when I was still in school (and somewhat works for work), but one large bucket with the ability to search by content—think iPhoto letting you search for text in photos—is how I run things now.