We track projects largely by project ID (example: 09047) as well as by CLIENT (example: NIKE) and NAME (example:"Run America Campaign")
In our directory structure we will list them by $ID $CLIENT $NAME. We also do almost all of our sorting by ID. Our current solution is to put everything into the name and then track the ID and Client in addition (example: "09047 NIKE Run America"). It would be helpful if the project was listed in the left nav by a combination of fields "$ID $Client $Name" instead of just "$Name". It would remove some redundancy and let the name be just the name while still keeping our job list in the navigation bar manageable.