Mac 201 Pro Series: Finding the Size of Multiple Documents

Let's say that you want to copy a bunch 'o files to a USB drive, You start the copy and a minute later: Disk Full! 

How about knowing the size before you copy? punching the numbers one by one? nope! 
Just open Finder, Select what you want, and just use Command + Option + i   [ ⌘ + ⌥ + i ]
And Voila!  7.53GB 

                    

                    


If you want to open the "Get Info" all at once, just drop the option: Command + i   [ ⌘+ i ]