TechRepublic: “Having an email inbox full of read, unneeded messages can cause problems, especially in the Gmail mobile app. When you have thousands of emails, the Gmail app search function can get bogged down. In addition, all those obsolete emails require storage space, and soon, Gmail will force you to delete emails to free up storage or upgrade to a paid subscription. So, what do you do? I’m going to show you a handy trick for mass deletion. Unfortunately, this only works on web-based Gmail. Using the Gmail app, you can select several messages by selecting them one at a time and then deleting all the selected messages. The good news is that your Gmail app will thank you for taking care of this…”