One of my favorite aspects of Gmail is the ability to archive. Archive allows you to clean up your inbox by transferring old messages to the All Mail section of your account, without needing to delete or organize your emails. Once you send a message, all you have to do is click on the archive button. Archive works like an online filing cabinet for your email. If you ever need to access an old email, you just have to use Search to find your archived email.
While clicking on send then archive is pretty efficient, there is a faster way. If you edit your settings (click on the gear in the upper right hand corner) and select the “Send & Archive” option under the General settings tab, you can now send and archive in a single click.