Gmail was practically founded on the principle of never having to delete an email again. But the service has been kicking around since 2004, and all of those old newsletters, chain emails, and special deals aren’t doing much except counting against your Google account’s 15 GB storage capacity. Fortunately, a quick search is all it takes to identify messages worth deleting.
before:2014/21/31 (or any other date you like in the yyyy/mm/dd format) in the search box to see emails that arrived before 2015, for example. To get rid of them all, tick the select all box (top left), choose Select all conversations and then click the Delete button—all your forgotten Facebook alerts, work missives, and birthday invites are gone for good.
Not only can you free up some…