You might already use auto email sequences to communicate with your subscriber. The way it’s being done is preprogrammed. You send the emails at a certain pace, regardless of when and if at all they read them. That is not optimal.
At the end of each email have a call to action asking them to help you with just one click, something like: “Did you find this email message useful or enjoyable? Help me by simply clicking YES or NO.” The click will tell you two things: 1. They finished reading it. 2. If they liked it. You can use both to dynamically trigger the next email and also decide which email to trigger based on their reply.
You work on multiple projects (for multiple clients) on multiple browser tabs at the same time.
Time tracking app that lets you assign each browser window to a particular project. This way when you are multitasking (because you are waiting for something to complete on one browser while doing something in another), the app will automatically track all your work time on all projects simultaneously.