A suggestion from someone who uses a similar system: get rid of yellow flags, and simply move those emails to whatever archive folder the &quot;completed&quot; emails would go to. A task where you&#x27;re waiting for input from someone else is a task for that someone else, not for you. As such, it has no place in your inbox.<p>All in all, using inbox as a TODO list has been a great arrangement for me - both at work and privately.