Setting up a new MacBook, I hesitated to enable email. Why? Because the MacBook already has Messages/SMS built into the operating system, and that can be silenced by clicking "Do not disturb." That's a tricky proposition with email. Sure, I could just quit the email app, but I would know that it is there and I would feel the urge to click it. Somehow, silencing Messages is easier. Like swiping into Airplane Mode.
The other complication: like most people in the modern world, I have two email addresses. One for work, and one personal. It's almost like an obligation. And, that obligation is what troubles me. Here’s the thing...
Email is a to-do list other people make for you.
Besides, if I am going to make a list I will likely use my trusty pocket notebook. Analog lists worked well for others, and it survived for years with pencil and paper. Maybe a pen and paper. Whatever your preference. To prove my point, note that there are several websites and books about the art of making lists. One of my favorites is Lists of Note.
One more thought on email:
Email is a wonderful way to miscommunicate what you mean and misinterpret what others are trying to tell you.