1. The golden rule: Call it what you want: personal productivity, self-management, personal development, but no matter how productive you are, there’s more room for improvement. 

2. Just because you live in a culture of always-on doesn’t mean you have to always be available. Available to all means effective to none. 

3. Be ugly. Be mean. Be nasty, rude, and downright hateful about unnecessary interruptions.

4. Self-interruptions are your biggest enemy. 

5. A few Slackisms: Slack is for teams; email is for clients. 

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