Considering Google's accounts aren't segmented by activity (there would be hundreds of activities with many added and removed all the time) that sounds like it

Considering Google's accounts aren't segmented by activity (there would be hundreds of activities with many added and removed all the time) that sounds like it would be a nightmare. Google's app specific passwords are revokable which is the important part. They also can't access sensitive account operations which means you can't reset the master password if you just have an ASP. If you lose control of your email password you can revoke it and generate a new one. The passwords are long and secure,