Managing your inbox is a never-ending task, which is why we need to simplify it as much as possible: And one way to do that is by relying on the four D’s, or the 4D method. It’s easy to remember and simple to implement, which makes it useful for anyone who has to process a pile of emails every day. Here’s how to follow it.

This method of managing your overflowing inbox has been around for a while, and it relies on quick decision-making to help you breeze through it. For example, Email Overload Solutions, a provider of eBooks on the topic of inbox management, has been recommending it since at least 2014. It’s tried and true, and it works, but only if you actually do what you need to do.

4D of course stands for four “D”s:

Do what the email says