I used to use Documents to Go quite often and really enjoyed the way I could have it sync certain files from various places (various folders) on my PC to my Android Phone. I could still use this today, however this seems to only sync over a USB and I don't always want to have to hook my phone up to the PC via a USB when I can more easily connect it WIFI or even possibly use Dropbox or something. How can I use Dropbox to sync only certain files that are currently located at various folders all over my PC? I would like to be able to edit them on my phone and on the PC. Thanks!