I rely on the mail reminder system to keep track of what things have been done and what things have not been.
When I send a message asking you to reply when a certain job is done, that means I have set a reminder. Please do NOT reply to the message before the time I said. If you do, you will cancel the reminder and I will just have to send you another message to establish a new one. If you want to send other mail on the topic before that time, please send it NOT as a reply. That way it will not cancel the reminder.