Ctrl+Alt+PgUp/Dn – Sometimes you just want to navigate to the very top or very bottom of the screen, regardless of the zoom level. Do it in lightning speed with Ctrl+Alt+PgUp/Dn.
Shift+F5 – Rethinking that last correction you did? Use Shift+F5 to return to that exact spot without squinting at the screen and trying to click in exactly the right place.
Ctrl+Alt+Z – Not sure which of your last changes you need to reconsider? Try this shortcut: Holding down Ctrl+Alt and tapping the Z key will toggle through the last four changes.