Luckily, both the Windows Explorer and the Mac OS X Finder allow you to specify the full folder path to browse, where you can enter a path that otherwise would (partially) be invisible.
Windows Explorer: just enter a full path in the address bar.
Mac OS X Finder: press Shift-Command-G (or Menu -> Go -> Go to Folder...), then enter the full path.
An alternative for Mac OS X is the payed (but great tool) Path Finder which is one of the best Finder replacements I know.
Command-line trick to enable/disable Mac OS X Finder hidden folder behaviour
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NameChanger cool visual tool to do pattern based mass-renames on your Mac.
Needs OS X 10.6 or better (Snow Leopard, Lion, Mountain Lion, Mavericks), though previous versions that are still available support all the way back until 10.3 (Panther).
Cool, I just found out that Wikipedia has a Screenshot topic, listing how to take screenshots (and often shots of the current window) on many platforms, where (*) means I verified them:
Apple Mac OS X
(*) Use “⌘ Cmd+⇧ Shift+3” for the screen or “⌘ Cmd+⇧ Shift+4” for a part of the screen (as of Mac OS X Tiger, you can press the “Spacebar” to capture a Window in stead of part of the screen). You can press “Ctrl” with these shortcuts to the shot goes to the clipboard, otherwise it gets saved as a PNG file.
Microsoft Windows (*) Use “Prt Sc” for the screen or “Alt+Prt Sc” for the Window
(note that on my laptop and multi-media keyboards, you need to type the “Fn” key in order to press the “Prt Sc”)
Apple iOS
(*) Press the “Home” and “Lock” button at the same time.
Google Android
Hold the “Volume down” button, then press the “Sleep/Wake” button.
(*) Or press the “Sleep/Wake” and the “Home” button at the same time.
HP WebOS
Press the “Orange/Gray Key+Sym+P” at the same time.
Or press “Home Key+Power” at the same time.
Most things are simple when you know how to do it.
In this case it was to move the Dock to a different monitor (or to restore it to your main monitor when you accidentally moved it to a secondary monitor).
TbonesTech explains it in the below video, and it is this simple:
On the monitor on which you want the Dock to appear, move the mouse to the bottom of the screen.
Then wait a moment for the Dock to move to that location.
It works in Mavericks. It might work in older versions as well, but I’ve not checked that yet.