Hi all. I have a few technical and non-technical questions. I just got a new Macbook Pro with Yosemite and it has a 500GB drive. Since it's fresh out of the box, I would like to clone (sometimes called imaging) the drive to a new USB 3.0 500GB or larger drive before I start installing software on it. The purpose of this would to allow the external drive to act, essentially, as a 2nd Mac...I could boot to either drive and decide if I wanted to do work on the original internal drive or the secondary drive. I could boot to the external while my wife boots to the internal and we would truly have 2 completely different OS installs and apps etc. 1)Are there any legal/licensing questions I need to figure out?...such as do I need to buy a license for Yosemite that is on the external drive (this OS seems to be completely free as I can't find any way to buy it). 2)Is CCC (Carbon Copy Cloner) the way to go? I recall using it about 8 years ago but the new/pay version has a different interface and all the searching for using it to truly clone pulls up 2+ year old web articles. 3)Can I buy a larger drive than 500GB which would allow the external Yosemite OS to still work and utilize all the extra space (such as if I buy a 1TB drive) 4)Any other topics I have not thought of? Thanks in advance!