We use pre-defined project templates in our workflow. They all follow the same structure, with the same folder names, high level task names etc. We use this structure as a checklist / tracker for our design process.
When we add project specific sub-tasks to these various folders and tasks, there is no way to view exactly which project each sub-task belongs to. You can hover to see this (in some views, not all...calendar for example) but this isn't intuitive enough.
For example, we may have several projects with folders named something like "Prototyping", "Development", "Project Sign-Off" etc.
Within these folders we may have tasks such as "Get Quote", "Develop Drawings" and "Approval".
If we have 8 projects running, with all of these sub-tasks - I would have to go looking for the correct "Get Quote" sub-task, which is a trial and error process.
Project labels may help, project-specific color coded bars on the gantt charts may also help. Concatenating the project Folder as a prefix to sub-tasks may also help (if you could intergrate this into a template).