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1) Download latest version of Mac OS (in my case macOS Sierra) from App Store
	a. [Command] + [Space] to engage the Spotlight Search
	b. type "App Store" and choose the App Store application from the list
	c. search for "macos sierra"
	d. locate the Mac OS and click [Download]
	e. it may ask if you are sure you want to download, just affirm by clicking [Continue], [Ok] or [Download]
	f. this will place an .appdownload file in your /Applications directory while downloading, which will changed to a .app file when download is complete (approximately 7 minutes on a good connection)
 2) Quit the installer
	a. as part of the download, an installer is immediately started after download (assuming you want to install of this machine)
	b. right click the installer application on the Dock and choose [Quit] from the context menu
 3) Prepare the USB Stick
	a. insert the USB Stick
	b. [Command] + [Space] to engage the Spotlight Search
	c. type "Disk Utility" and choose Disk Utility application from the list
	d. click on the USB Physical Disk (not the volume, but the physical disk)
	e. click the [Erase] button
	f. on the dialog, use the values:
		Name: USBBoot
		Format: OS X Extended (Journaled)
		Scheme: GUID Partition Map
 		*NOTE* If your USB stick has not already been formated (or formatted on a PC), [Scheme] may not appear as an option during the Erace step, which is fine.
 	g. close the Disk Utility application
 4) Create your bootable USB
	a. [Command] + [Space] to engage the Spotlight Search
	b. type "Terminal" and choose the Terminal application from the list
	c. type the following in the terminal and press [Enter]
 	sudo /Applications/Install\ macOS\ Sierra.app/Contents/Resources/createinstallmedia --volume "/Volumes/USBBoot" --applicationpath "/Applications/Install macOS Sierra.app" --nointeraction
 	*NOTE* Notice the backslash space "\ " in the first path; this is escaping the path to allow spaces, as the actual file name is "Install macOS Sierra.app", which is escaped to "Install\ macOS\ Sierra.app" in order for the terminal to read it
 	d. enter your password when prompted and press [Enter]
	e. you should see the below output:
 	Erasing Disk: 0%... 10%... 20%... 30%...100%...
	Copying installer files to disk...
	Copy complete.
	Making disk bootable...
	Copying boot files...
	Copy complete.
	Done.
 5) Install the OS from your USB Stick
	a. after the copy is complete indicated with "Done.", eject the USB Stick
	b. leave the USB Stick in and restart your Mac
		i. click the apple logo in the upper left hand corner
		ii. choose Restart... from the menu
	c. during the reboot sequence, hold down the [alt/option] key