- Published
- Updated July 21, 2026
- Life by Design > Mental models > One in, One Out
Mental Models for solopreneurs
How to use One in, One Out by Nicholas Robb
1 Mindset shift
2 When to use it
3 How to use it
You can't just keep adding more to your plate. Existing responsibilities don't just disappear so even exciting projects lead to overwhelm if your ambition outstrips your time.
When you want to take on a new project or activity.
If I want to add a new project or responsability, I have to decide to remove something else first.
Nicholas Robb
Founder, Design Hero
Author of Life by Design
Nicholas@lifebydesign.online