I can only answer for email, but mail rules are you friends. I have many rules that label, categorize, archive, delete, and mark things as important. Almost all

I can only answer for email, but mail rules are you friends. I have many rules that label, categorize, archive, delete, and mark things as important. Almost all automated emails (receipts, reminders, alerts, etc) skip my inbox entirely, so I only have to actually think about things people send to me directly. Everything else gets my attention either in scheduled slots (eg before a stand up, or at 10am, in the case of things like Gitlab or JIRA emails) or just when I've got some time (newsletters). I'm not an organized person so I get a computer to do it for me.