LAN: sudo apt-get install linux-backports-modules-cw-3.6-quantal-generic
After reboot, it should show up in network connections.
Nvidia/Extend battery life: Install bumblebee, and make sure it is starting on boot.
NVIDIA GeForce 650M: https://wiki.ubuntu.com/Bumblebee
In my case the bumblebeed service was not starting, so if I wanted to run optirun it would fail. Try this:
If it is asking if the service is started, try 'sudo service bumblebeed restart'.
If bumblebee does not start on reboot, use this (last entry):
Huge panel icons: Right click on the panel, click panel settings, click "use customized panel size" and "allow cinnamon to scale panel text and icons...".