Ctrl+Shift+N to open new terminal within the same path as you are on the current terminal.
Ctrl+Alt+T to open new terminal within home
Ctrl+Alt+F1 to disable the graphics of ubuntu
Ctrl+Alt+F7 to enable the graphics of ubuntu
Alt+Tab to flip to different applications opened at the same time
Tab key for auto completion in terminal
Fn+F2 to dim lappy’s light /brightness