I would say both. You need some sort of plan to to divvy up the space, but then you can be more lax and go with the flow. : )
Benjamin Franklin’s admonition made over 200 years ago when he said, “Security and freedom are not the same thing… in fact just the opposite. The more security you seek, the less freedom you have. The people with the most security are in jail. That’s why they call it maximum security.”