[Technology] Using GMail from Evolution: labels and folders

I'm testing out using GNOME's mail client, Evolution, to manage my
GMail. I've been uncertain how GMail labels would play with Evolution's
folders, so reading this guide helped me out:

http://thegreyblog.blogspot.ca/2009/06/configuring-evolution-for-gmail.html

• Basically,
  every label becomes a folder.  


• You can label a message by copying it
  into the corresponding folder.  


• If you move a message, you remove the
  label from the originating folder and replace it with the destination.  


•  Inbox is a label and a folder.  


• To archive something from the inbox,
  just move it away from the Inbox folder/label, which can easily be done
  by deleting it, moving it to the Evolution trash (but not the GMail
  Trash label/folder).  


• Deleting a message only removes it from the folder
  you're immediately deleting it from (removing that label), and because
  all mail arriving in GMail is automatically labelled with All Mail, you
  still retain a copy there.  


• If you want to truly delete a message, you'd
  label it with GMail's Trash label (move or copy it into that folder).  


•  It will actually stick around in your other labels/folders for 30 days
  (unless you remove it from each one), but then be completely purged from GMail (and thus the other labels).