Gmail in my environment

I currently do not work in a class room. I worked as a Para Educator in rooms and try keep up on Certifications should I want to move back into Para Education. Now I work in an office space. We handle alot of emails from school staff outside our office as well as Parents. We also forward and include emails between each other. Using filters and labels has helped me keep things organized and easy to find. My co worker has a habit of deleting emails and then needing them after they are gone. Archiving emails instead of deleting them right away will help us with this problem.