Can I install extra environments without affecting my current environment? I have to use a low energy demanding environment because I will not be able to charge for a few (a lot of) hours and I will need my laptop but I don't want to mess up my Unity and Compiz settings. (They're perfect as they are right now.)
I'm asking because I got mixed messages saying that it is no problem as well as those that say that the universe basically exploded when they switched temporarily.
ps. any recommendations for low power consuming environments? I don't want to run only a shell. A bit of a GUI is appreciated.
For future generations reading this: Xfce works great. The only change to Unity is the notification window that pops up when you adjust the volume or connect to a new network. I'm going to leave that change however because I quite like it. It is now gray and features buttons like "skip this item" for music songs and "don't show this message again" for other notifications.