We now have a new app available on the Autodesk Exchange store and it's FREE!!
The app is for Civil 3D 2013 and functions as a surface style component toggle. It's a pretty simple, but very useful little app that allows you to toggle the various surface style components from the command line (ie: surface triangles, boundaries, etc.). If you find yourself toggling these on and off often, this app will save you several clicks each time.
Here's a YouTube video of the app in action: