One challenge is that there are some things which should distract us:
1. Pull Requests which we should review to unblock our teammates.
2. Production errors which should be investigated.
3. Slack messages from those 1-3 people we are immediately working with and which they'd want to interrupt us with.
4. Fire alarms which are not weekly tests.
5. Messages from spouse which they intend to inturrupt us with.
For me, one big win has come when I was able to put a Zeroable Inbox of PRs-to-review on my menubar. Instead of searching through github, I could just glance.