If you don't have any concerns regarding privacy or security, use Mailbox app http://www.mailboxapp.com/ http://www.mailboxapp.com/ I do #inboxzero very easily

If you don't have any concerns regarding privacy or security, use Mailbox app http://www.mailboxapp.com/ http://www.mailboxapp.com/ I do #inboxzero very easily and it's so piece of cake, I don't need to write blog post about to tell how I did it.