We can drag and drop our folders into sidebar, you already know that right? But have you ever imagined to drop your folder into toolbar?
It is easy, just drag your folder above the toolbar and wait for rectangle to appear, then drop it..
And some important notes :
Have you seen Finder without toolbar before?
Maybe it's unfamiliar for you. I just made my toolbar viewing text without icon. You can also make something like this.
Command-Option and click right-corner button will lead you to Customizing Toolbar.
However, only clicking the Right-Corner Button will hide your toolbar and sidebar.
I will be very happy to let you know that you can hide your sidebar, shrink or enlarge it.
Move your mouse to the border between Sidebar and Folder List (your mouse will transform). Then Click Hold Move Left/Right and release it after you got your favorite Sidebar's view (you can hide it too with keystrokes Command-Option-Control-T.
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