Doing a lot of typing? Want to make your life easier? Read (and perhaps print-out) this list of great keyboard shortcuts
CTRL-C Copy the selected text
CTRL-V Paste the selected text, BUT note these cautions to pasting
CTRL-X Cut the selected text
CTRL-A Select everything on the page
CTRL-Z Undo - this is often handy, but only goes one step back
Mac computers are much the same, except you press the Apple key instead of Ctrl.
Typically any keyboard shortcut you are familiar with will probably work.
Note, CTRL-S does not save. You need to click the Save Changes button.