[slocklin01]

These days: I stick them in labeled subdirectories, sync my machines using BitTorrentSync, and use an org-emacs file or two to keep notes. Not awesome, but it keeps most of the visible work flow within emacs (which can view PDF files these days).

A friend does something similar, but uses BibTex to keep track of things.

[neumann]

this is what I use. The only thing missing is a nice quick cli text search to compete with spotlight/mendeley text search. i have yet to try pdfgrep and such.