Currently, /home and /data/project are shared across all instances of the design project, allowing files to be shared easily across instances. This however, comes at a cost of less reliability - your instances are unavailable during NFS outages (this is the most unreliable part of all of labs), home directory access is slower, etc. It also makes Yuvi Sad.
Additionally, there's the /public/dumps mount that provides readonly access to wiki dumps, and /data/scratch which is a labs-wide scratch NFS mount. Ideally all four can be removed :)