To find these options, head to the Activity Controls page and sign in with your Google account if you aren't already signed in. Click the "Auto-delete" option under Web & App Activity. Select when you want to delete data---after 18 months or 3 months. Click "Next" and confirm to continue.

For those worrying about privacy, modern browsers allow you to surf in a mode called private or incognito. Simply open a window in private mode, browse as you please, and close it when you’re done. As soon as the window shuts, all the browsing history and stored cookies from that session will automatically disappear.