My top level folders are roles: ie: homeowner, friend, partner, dreamer, worker. Some of these have sub-roles or just folders to organize the projects: homeowner/car homeowner/chores...; worker/teacher, worker/student, ....
This has helped me avoid the overlap worries and also helps me narrow my focus depending on where my head is.
This has helped me avoid the overlap worries and also helps me narrow my focus depending on where my head is.