When Gmail first appeared in 2004, the idea of having what seemed like a never-ending space for email was revolutionary. Most paid services were providing a few megabytes of space, and here came Google promising a full gigabyte (which, at the time, seemed huge) for free. I switched to Gmail in 2005, not long after it was first introduced (at least, April of that year is the earliest email I can find in my first account), and I — along with a lot of other users — haven’t looked back since.
For two decades, Gmail has been my main email app, and I have learned to tweak it to my needs. For example, I’ve created rules that automatically place custom labels on the appropriate emails (labels such as Conventions, Books, or, during the first…