Ctrl+N - Open a new window
Ctrl+Shift+N - Open a new window in incognito mode
Ctrl+T - Open a new tab
Ctrl+O- Open a file in the browser
Ctrl+Shift+T - Reopen the last tab you've closed. Google Chrome remembers the last 10 tabs you've closed.
Ctrl+1 through Ctrl+8 - Go to the tab at the specified position in the window
Alt+Tab - Go to the next window you have open
Click and hold the Back or Forward arrow in the browser toolbar to see your browsing history for that tab
Press Ctrl and click a link to open the link in a new tab in the background
Ctrl+Shift+L - Locks your screen