The work-management system used by software developers is usually useful for anything from trac.
What a cruel and vindictive way to activate Google subscribers.
If you want over one voucher you could potentially go on the trouble of starting
loads of email accounts. Best of, it is possible to mark as "Done" (essentially Inbox's
strategy for archiving messages) or perhaps delete entire
bundles at a time, saving you the difficulty of swiping each and each trashable message.