Top 10 Most Useful Keyboard Shortcuts

If your mouse breaks, don't worry, the keyboard is here to save you.
The Top Ten
1 Ctrl + Z
2 Ctrl + Alt + Delete
3 Ctrl + S
4 Ctrl + Y
5 Ctrl + P
6 Ctrl + V
7 Ctrl + B
8 Ctrl + U
9 Ctrl + I
10 Ctrl + 1
The Contenders
11 Ctrl + C
BAdd New Item