I store PDFs in Google Drive by quarter (e.g. ~/content/2015Q4/), and generally try to add a few relevant terms in the title. The only thing that bothers me is

I store PDFs in Google Drive by quarter (e.g. ~/content/2015Q4/), and generally try to add a few relevant terms in the title. The only thing that bothers me is that I have to go through and specifically mark the files as available offline.