This Gmail strategy helped me transition from Mailbox: <a href="http:&#x2F;&#x2F;lifehacker.com&#x2F;this-gtd-workflow-is-how-i-finally-got-my-email-inbox-u-1505884967" rel="nofollow">http:&#x2F;&#x2F;lifehacker.com&#x2F;this-gtd-workflow-is-how-i-finally-got...</a><p>Essentially use Multiple Inboxes as well as some filters&#x2F;labels to create the basic GTD categories. I&#x27;ve modified it to use Labels since I find the various stars inefficient. I have inboxes for &quot;Work On&quot; (label:<i>Priority), &quot;Someday&quot; (label:</i>Someday), &quot;Waiting&quot; (label:*Waiting), and &quot;Reference&quot; (is:starred). This combined with services offered from Boomerang (<a href="http:&#x2F;&#x2F;www.boomeranggmail.com&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.boomeranggmail.com&#x2F;</a>) get pretty close to what I was trying to accomplish with Mailbox. It&#x27;s not as elegant but I don&#x27;t have to worry about using a proprietary email client that might not be around.