Emails can be overwhelming! We all know that certain emails are more important than others and that can change day by day.One way of making sure those pressing emails get answered and whatever is in them done is to put a star or check next to the ones that are the priority. Depends on what email system you have. I know somebody who does a screen print and circles the ones he wants to make sure he completes that day.
The end result is to have gotten through the emails that are a priority that day without missing one. AND to keep you organized.