However there was an article back in 2012 at elementary OS’s website about keyboard shortcuts in Luna, I think many people are not aware of these. These shortcuts will also work on the next version of elementary OS, named Freya. I think these shortcuts are extremely useful, using them makes a lot of things quicker and they make your OS more efficient.
|⇧+Alt+Tab||Switch Windows Backwards|
|⌘+A||Window Overview (Across All Workspaces)|
|⇧+⌘+Left/Right||Move Window with Workspace|
|Ctrl+⌘+Left/Right||Snap Window to Half of Workspace|
|⌘+Secondary (Right) Click+Drag||Resize Window|
|⌘ = Super (Windows or Command key), ⇧ = Shift|