In Cinnamon 1.6 you can name your workspaces. This allows you to define distinct and memorable environments and to separate and gather your windows according to your activities.
Workspaces are “persistent” in Cinnamon. This means you can create a workspace whenever you want by clicking the “+” button and it will remain there until you decide to delete it. You can log off or even reboot, your workspaces will remain the way you defined them.